Published December 4, 2021

TinyML: Speech Commands Detection

A project to recognize "yes"/"no"/other words and respond by lighting an LED in green/red/blue colors on an Arduino board.

BeginnerFull instructions provided699

Things used in this project

Hardware components

Arduino Nano 33 BLE Sense

USB-A to Micro-USB Cable

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

TensorFlow Lite

Story

1. Introduction

The application of speech commands or wake words is to make machines recognize audio inputs, understand their meanings, and respond correspondingly. For instance, "Hi Siri" audio commands of iPhones and robot voice customer service are very classic examples. Many machine learning and deep learning models were able to handle this task, but usually, the accuracy would become lower when model size is limited. Here we are trying to compress the model size and deploy it on an embedded device.

In this project, I train the model to recognize audio inputs and classify them into “yes”, “no”, or "others" classes, and deploy the model on an Arduino Nano 33 BLE Sense board. Once the audio inputs are detected by the Arduino onboard microphone and classified by the embedded model, the LED light on the board would respond by lighting green, red, or blue correspondingly.

2. Approach

2.1 Data Preprocessing

As most of the signal processing works, I transform the raw audio inputs into spectrograms from the time domain into the frequency domain by the Fast Fourier transform (FFT) algorithm. This transformation makes the model more able to extract meaningful information.

2.2 Machine Learning Model

I use convolutional neural networks (CNNs) as my model to extract features from the transformed spectrograms. The CNN model is pre-trained on the Speech Commands Dataset, which consists of 65, 000 one-second long utterances of 30 short words, crowdsourced online. After the model is trained, I use TensorFlow Lite to convert it to a compressed format which could be deployed on embedded devices.

2.3 Deploy on Arduino

After connecting the Arduino board to my laptop, I use Arduino IDE to set up the embedded environment and upload the codes to the board.

3. Testing Results

After my model was deployed and running on the Arduino board, I tested its functionality by saying "Yes", "No", and "Ugo" sequentially, and the model indeed responded by lighting green, red, and blue sequentially as the below video.

This video demonstrates how my Speech Commands Detection model works

Code

/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#if defined(ARDUINO) && !defined(ARDUINO_ARDUINO_NANO33BLE)
#define ARDUINO_EXCLUDE_CODE
#endif  // defined(ARDUINO) && !defined(ARDUINO_ARDUINO_NANO33BLE)

#ifndef ARDUINO_EXCLUDE_CODE

#include "audio_provider.h"

#include "PDM.h"
#include "micro_features_micro_model_settings.h"

namespace {
bool g_is_audio_initialized = false;
// An internal buffer able to fit 16x our sample size
constexpr int kAudioCaptureBufferSize = DEFAULT_PDM_BUFFER_SIZE * 16;
int16_t g_audio_capture_buffer[kAudioCaptureBufferSize];
// A buffer that holds our output
int16_t g_audio_output_buffer[kMaxAudioSampleSize];
// Mark as volatile so we can check in a while loop to see if
// any samples have arrived yet.
volatile int32_t g_latest_audio_timestamp = 0;
}  // namespace

void CaptureSamples() {
  // This is how many bytes of new data we have each time this is called
  const int number_of_samples = DEFAULT_PDM_BUFFER_SIZE;
  // Calculate what timestamp the last audio sample represents
  const int32_t time_in_ms =
      g_latest_audio_timestamp +
      (number_of_samples / (kAudioSampleFrequency / 1000));
  // Determine the index, in the history of all samples, of the last sample
  const int32_t start_sample_offset =
      g_latest_audio_timestamp * (kAudioSampleFrequency / 1000);
  // Determine the index of this sample in our ring buffer
  const int capture_index = start_sample_offset % kAudioCaptureBufferSize;
  // Read the data to the correct place in our buffer
  PDM.read(g_audio_capture_buffer + capture_index, DEFAULT_PDM_BUFFER_SIZE);
  // This is how we let the outside world know that new audio data has arrived.
  g_latest_audio_timestamp = time_in_ms;
}

TfLiteStatus InitAudioRecording(tflite::ErrorReporter* error_reporter) {
  // Hook up the callback that will be called with each sample
  PDM.onReceive(CaptureSamples);
  // Start listening for audio: MONO @ 16KHz with gain at 20
  PDM.begin(1, kAudioSampleFrequency);
  PDM.setGain(20);
  // Block until we have our first audio sample
  while (!g_latest_audio_timestamp) {
  }

  return kTfLiteOk;
}

TfLiteStatus GetAudioSamples(tflite::ErrorReporter* error_reporter,
                             int start_ms, int duration_ms,
                             int* audio_samples_size, int16_t** audio_samples) {
  // Set everything up to start receiving audio
  if (!g_is_audio_initialized) {
    TfLiteStatus init_status = InitAudioRecording(error_reporter);
    if (init_status != kTfLiteOk) {
      return init_status;
    }
    g_is_audio_initialized = true;
  }
  // This next part should only be called when the main thread notices that the
  // latest audio sample data timestamp has changed, so that there's new data
  // in the capture ring buffer. The ring buffer will eventually wrap around and
  // overwrite the data, but the assumption is that the main thread is checking
  // often enough and the buffer is large enough that this call will be made
  // before that happens.

  // Determine the index, in the history of all samples, of the first
  // sample we want
  const int start_offset = start_ms * (kAudioSampleFrequency / 1000);
  // Determine how many samples we want in total
  const int duration_sample_count =
      duration_ms * (kAudioSampleFrequency / 1000);
  for (int i = 0; i < duration_sample_count; ++i) {
    // For each sample, transform its index in the history of all samples into
    // its index in g_audio_capture_buffer
    const int capture_index = (start_offset + i) % kAudioCaptureBufferSize;
    // Write the sample to the output buffer
    g_audio_output_buffer[i] = g_audio_capture_buffer[capture_index];
  }

  // Set pointers to provide access to the audio
  *audio_samples_size = kMaxAudioSampleSize;
  *audio_samples = g_audio_output_buffer;

  return kTfLiteOk;
}

int32_t LatestAudioTimestamp() { return g_latest_audio_timestamp; }

#endif  // ARDUINO_EXCLUDE_CODE

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#ifndef TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_MICRO_FEATURES_GENERATOR_H_
#define TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_MICRO_FEATURES_GENERATOR_H_

#include "tensorflow/lite/c/common.h"
#include "tensorflow/lite/micro/micro_error_reporter.h"

// Sets up any resources needed for the feature generation pipeline.
TfLiteStatus InitializeMicroFeatures(tflite::ErrorReporter* error_reporter);

// Converts audio sample data into a more compact form that's appropriate for
// feeding into a neural network.
TfLiteStatus GenerateMicroFeatures(tflite::ErrorReporter* error_reporter,
                                   const int16_t* input, int input_size,
                                   int output_size, int8_t* output,
                                   size_t* num_samples_read);

#endif  // TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_MICRO_FEATURES_GENERATOR_H_

/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include "micro_features_micro_model_settings.h"

const char* kCategoryLabels[kCategoryCount] = {
    "silence",
    "unknown",
    "yes",
    "no",
};

/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#ifndef TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_MICRO_MODEL_SETTINGS_H_
#define TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_MICRO_MODEL_SETTINGS_H_

// Keeping these as constant expressions allow us to allocate fixed-sized arrays
// on the stack for our working memory.

// The size of the input time series data we pass to the FFT to produce the
// frequency information. This has to be a power of two, and since we're dealing
// with 30ms of 16KHz inputs, which means 480 samples, this is the next value.
constexpr int kMaxAudioSampleSize = 512;
constexpr int kAudioSampleFrequency = 16000;

// The following values are derived from values used during model training.
// If you change the way you preprocess the input, update all these constants.
constexpr int kFeatureSliceSize = 40;
constexpr int kFeatureSliceCount = 49;
constexpr int kFeatureElementCount = (kFeatureSliceSize * kFeatureSliceCount);
constexpr int kFeatureSliceStrideMs = 20;
constexpr int kFeatureSliceDurationMs = 30;

// Variables for the model's output categories.
constexpr int kSilenceIndex = 0;
constexpr int kUnknownIndex = 1;
// If you modify the output categories, you need to update the following values.
constexpr int kCategoryCount = 4;
extern const char* kCategoryLabels[kCategoryCount];

#endif  // TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_MICRO_MODEL_SETTINGS_H_

/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

// This is a standard TensorFlow Lite FlatBuffer model file that has been
// converted into a C data array, so it can be easily compiled into a binary
// for devices that don't have a file system. It was created using the command:
// xxd -i model.tflite > model.cc

#include "micro_features_model.h"

// We need to keep the data array aligned on some architectures.
#ifdef __has_attribute
#define HAVE_ATTRIBUTE(x) __has_attribute(x)
#else
#define HAVE_ATTRIBUTE(x) 0
#endif
#if HAVE_ATTRIBUTE(aligned) || (defined(__GNUC__) && !defined(__clang__))
#define DATA_ALIGN_ATTRIBUTE __attribute__((aligned(4)))
#else
#define DATA_ALIGN_ATTRIBUTE
#endif

const unsigned char g_model[] DATA_ALIGN_ATTRIBUTE = {
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    0x1e, 0x06, 0xfd, 0x11, 0xfc, 0xfa, 0xf6, 0x1f, 0x0f, 0x02, 0xf5, 0xf7,
    0xff, 0x24, 0xdf, 0xf7, 0xf8, 0xf3, 0xf6, 0xe9, 0xef, 0x03, 0xdd, 0xf2,
    0x28, 0xe1, 0xf2, 0x22, 0xf4, 0x09, 0xf7, 0xf9, 0xf0, 0xd4, 0xf9, 0xee,
    0xff, 0x14, 0xda, 0xf3, 0x11, 0xe2, 0xf6, 0x0c, 0xf2, 0xeb, 0xf8, 0xe8,
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    0xfd, 0xee, 0x17, 0xfd, 0x1c, 0xef, 0xfd, 0xde, 0x04, 0x05, 0xf0, 0x31,
    0xfa, 0x0b, 0xdc, 0x0d, 0xed, 0xf5, 0xfa, 0xf4, 0x08, 0x0c, 0xd7, 0x1e,
    0x15, 0x03, 0xf5, 0x02, 0xf4, 0xfb, 0xed, 0x01, 0xfe, 0xd6, 0x1f, 0xfd,
    0xfd, 0x0e, 0xfa, 0x06, 0xf1, 0xf9, 0xe2, 0x16, 0xe9, 0xf1, 0x03, 0x0d,
    0x0d, 0xdf, 0xf9, 0x1a, 0x0e, 0xf6, 0xfc, 0x0a, 0x19, 0xe2, 0xe0, 0x09,
    0x15, 0xf0, 0xf1, 0x06, 0xf1, 0xe1, 0xef, 0x1a, 0x08, 0xe8, 0xfd, 0x12,
    0x14, 0x06, 0xf1, 0xfc, 0xea, 0xfb, 0xf7, 0xea, 0x1d, 0x09, 0xfa, 0xf6,
    0x08, 0xf2, 0xe7, 0xf8, 0xfc, 0x16, 0xf5, 0x0e, 0x08, 0xf9, 0x0a, 0x03,
    0x26, 0xd8, 0x02, 0xf5, 0xf6, 0xf6, 0xef, 0x1f, 0xe4, 0xe2, 0xfb, 0x02,
    0x1b, 0xe6, 0xde, 0x00, 0xf2, 0xed, 0xfb, 0x18, 0xe4, 0x16, 0x1a, 0x1d,
    0xf1, 0xf6, 0xea, 0x16, 0x05, 0xde, 0xfb, 0x18, 0xf5, 0xe4, 0xfe, 0xe2,
    0x1b, 0x1c, 0x0c, 0xe8, 0x02, 0xee, 0xfb, 0x07, 0x24, 0xf2, 0xe9, 0xfa,
    0x0d, 0x05, 0xf1, 0x03, 0xfe, 0xf6, 0x19, 0x06, 0xff, 0xf9, 0x04, 0xfb,
    0x15, 0xef, 0xf1, 0xf8, 0xe9, 0xe1, 0x10, 0x04, 0xfc, 0xe6, 0x1f, 0xed,
    0x0b, 0xef, 0x00, 0x1e, 0xe6, 0x16, 0xf3, 0x09, 0xfd, 0x08, 0x08, 0x06,
    0x06, 0x23, 0xdf, 0xfc, 0x08, 0xf4, 0xea, 0x0c, 0xf2, 0xe6, 0x18, 0xf5,
    0x02, 0xf9, 0x50, 0x09, 0x01, 0xda, 0x0b, 0x05, 0x12, 0x18, 0xef, 0x04,
    0x0e, 0xd9, 0xff, 0xdc, 0xf6, 0x16, 0xf9, 0xf4, 0xec, 0xff, 0xea, 0xe6,
    0xfa, 0x0a, 0xed, 0xef, 0x02, 0xf0, 0x25, 0x21, 0xf1, 0x26, 0xf5, 0xed,
    0x09, 0xea, 0xea, 0x24, 0xfa, 0x11, 0xfc, 0xdf, 0xf3, 0x0a, 0x28, 0x0c,
    0x19, 0xff, 0xf5, 0xd6, 0x0e, 0xe2, 0x2a, 0x06, 0xfa, 0x03, 0xf9, 0xe6,
    0xef, 0x23, 0xf9, 0xfa, 0xe6, 0xfe, 0xfc, 0x03, 0x06, 0x1a, 0xf9, 0x08,
    0xe0, 0xe5, 0xff, 0x05, 0x01, 0xe7, 0x12, 0x02, 0x1d, 0x05, 0x03, 0x05,
    0x0b, 0xee, 0xed, 0xfc, 0x0f, 0xf3, 0x02, 0xe0, 0x15, 0xdf, 0x02, 0xed,
    0x10, 0x26, 0xef, 0x0d, 0x06, 0xee, 0xef, 0xf6, 0xeb, 0x11, 0x09, 0xf4,
    0xf7, 0x06, 0x0f, 0x01, 0x2a, 0x0b, 0x01, 0xdd, 0xfc, 0xf4, 0xf1, 0x17,
    0x03, 0x04, 0x07, 0xfc, 0x22, 0xfc, 0xde, 0xfe, 0x0b, 0x03, 0xf3, 0xfb,
    0x0c, 0x25, 0x04, 0x19, 0x04, 0x03, 0x01, 0xfa, 0xfb, 0xf7, 0xf6, 0x0e,
    0x15, 0x0e, 0x09, 0xff, 0x06, 0xfa, 0xfb, 0x1e, 0xfb, 0x05, 0x22, 0xf9,
    0xfe, 0xf7, 0x1d, 0xed, 0xdf, 0x18, 0x09, 0xeb, 0xef, 0x04, 0x12, 0xea,
    0xdf, 0xfb, 0xda, 0xf6, 0xdf, 0x17, 0xef, 0xef, 0xe1, 0x1a, 0xd9, 0xe2,
    0xe2, 0xfc, 0x05, 0x11, 0xf6, 0xee, 0xe8, 0xf2, 0xe1, 0x08, 0x26, 0x04,
    0xed, 0x03, 0xe0, 0xfb, 0xee, 0x0c, 0xee, 0xf6, 0x04, 0x2d, 0xf2, 0xd3,
    0xf4, 0xe0, 0xf8, 0x0c, 0xfe, 0x11, 0x0b, 0xd7, 0xfd, 0x18, 0x07, 0x0d,
    0x07, 0x08, 0xf4, 0xc6, 0x0a, 0x0a, 0x1f, 0x0c, 0xf4, 0x1d, 0x02, 0x0b,
    0x09, 0x0e, 0x21, 0xff, 0x17, 0x0b, 0x0d, 0xf2, 0xed, 0xd7, 0x0a, 0xf8,
    0x03, 0x06, 0xfa, 0xe5, 0xfd, 0x03, 0x14, 0x0f, 0xe9, 0x1a, 0xf4, 0xda,
    0x01, 0xe6, 0x09, 0x06, 0x11, 0x0d, 0xfd, 0xeb, 0x16, 0x23, 0xfa, 0x00,
    0x0b, 0x17, 0xf7, 0xda, 0xd7, 0x1b, 0xfa, 0x01, 0x03, 0x05, 0xfe, 0xd6,
    0x02, 0xee, 0xee, 0x02, 0xf3, 0x06, 0xed, 0x03, 0xec, 0x01, 0xf2, 0x0f,
    0x05, 0x17, 0x0b, 0xfb, 0x0f, 0x05, 0x03, 0x13, 0xff, 0x06, 0x02, 0xf5,
    0xf4, 0x18, 0x2b, 0xf0, 0x00, 0x17, 0xfc, 0xfd, 0x05, 0x0b, 0x0e, 0x14,
    0xe1, 0x24, 0x08, 0x24, 0xe6, 0xeb, 0x21, 0x12, 0xfb, 0x12, 0xe7, 0xf4,
    0xe8, 0x0e, 0x18, 0xee, 0xf5, 0xf3, 0xd9, 0xf3, 0xdb, 0xec, 0x0c, 0x1e,
    0xcf, 0x14, 0xdb, 0xe3, 0xdc, 0x02, 0x0c, 0xfb, 0xdb, 0x1b, 0xd0, 0xfe,
    0xf9, 0xfe, 0x2a, 0xf5, 0x00, 0x0b, 0xcd, 0xe0, 0xe2, 0x0e, 0x04, 0xf8,
    0xda, 0x1c, 0xe5, 0x0f, 0xe8, 0xf4, 0xf7, 0x15, 0x06, 0xf8, 0x02, 0xf7,
    0x0f, 0xfb, 0x17, 0xf9, 0xda, 0x01, 0xda, 0xd1, 0xf6, 0x02, 0xfd, 0x16,
    0xf1, 0xe4, 0xfa, 0x07, 0xee, 0x0a, 0xf3, 0xfd, 0xf2, 0x23, 0xf0, 0xe1,
    0x0a, 0x1a, 0x12, 0x1f, 0xef, 0x27, 0x09, 0xf1, 0x0c, 0x13, 0x23, 0xfd,
    0xf5, 0x03, 0xfe, 0x09, 0xfd, 0x16, 0xf8, 0x07, 0x08, 0x25, 0x08, 0xf8,
    0xf6, 0x0a, 0xf1, 0xf5, 0x07, 0x09, 0x05, 0xcc, 0xf8, 0x08, 0x13, 0xf9,
    0x1d, 0x11, 0x0f, 0xdc, 0xee, 0xf3, 0x27, 0xf9, 0xf9, 0x22, 0xfa, 0x0d,
    0xe2, 0x13, 0xfb, 0x11, 0x03, 0x1e, 0xff, 0xfb, 0xed, 0xf1, 0x0e, 0x0b,
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    0xfa, 0x1f, 0x12, 0xe5, 0xe2, 0x06, 0xf9, 0xf4, 0x07, 0x15, 0x0b, 0x04,
    0xdb, 0x0d, 0xeb, 0xf3, 0xe6, 0x06, 0xe5, 0xee, 0xd8, 0x22, 0xd8, 0x10,
    0xea, 0xf9, 0x1c, 0xf7, 0xd3, 0x11, 0xc3, 0xf8, 0xde, 0x05, 0x00, 0xe6,
    0x07, 0xfd, 0xd3, 0x03, 0xea, 0xe0, 0x13, 0x14, 0xcf, 0xeb, 0xcd, 0xd3,
    0xde, 0xf5, 0xf0, 0x0c, 0x0c, 0xfa, 0xeb, 0xd3, 0xfb, 0xfd, 0x08, 0xf9,
    0xf4, 0x10, 0xfa, 0xd3, 0xf4, 0x11, 0x11, 0xf8, 0xef, 0xf8, 0xf8, 0xf1,
    0xfc, 0xe1, 0xf7, 0x12, 0x04, 0xf4, 0xfb, 0xed, 0xef, 0x0c, 0xfd, 0x1c,
    0xfe, 0x0e, 0xfd, 0xe2, 0xfe, 0x0a, 0x02, 0xfe, 0xe6, 0x1f, 0xef, 0xe5,
    0xe6, 0xf8, 0x16, 0x27, 0xe8, 0x20, 0x05, 0xe3, 0xf1, 0xef, 0xee, 0xed,
    0x0d, 0x11, 0x16, 0xfb, 0xf3, 0xff, 0x14, 0x01, 0xff, 0x15, 0x10, 0x02,
    0xe5, 0x28, 0x29, 0x13, 0x13, 0x16, 0xe6, 0x00, 0xd2, 0x26, 0xfd, 0x03,
    0x04, 0x05, 0x07, 0x06, 0xf1, 0x0e, 0x05, 0x0d, 0xe2, 0x0f, 0x02, 0xe1,
    0x07, 0xf7, 0x1c, 0xfa, 0x14, 0x30, 0xf7, 0xee, 0x00, 0xfa, 0x3d, 0x06,
    0x1c, 0x04, 0x06, 0x07, 0x05, 0x1a, 0x10, 0xf6, 0xee, 0x0a, 0xeb, 0x04,
    0xeb, 0xdf, 0x1d, 0x09, 0xd5, 0xe8, 0xd6, 0xf4, 0xf0, 0x0f, 0x1d, 0xea,
    0xf2, 0xf8, 0xa6, 0x0b, 0xdc, 0x09, 0x08, 0x24, 0xee, 0x24, 0xaa, 0xe4,
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    0x07, 0x14, 0xd7, 0xde, 0xf6, 0x0f, 0x0b, 0x04, 0xfb, 0x0d, 0xf8, 0x0d,
    0xf6, 0x1b, 0xf1, 0x21, 0xdd, 0xfc, 0xf4, 0xe9, 0xf8, 0xe8, 0xf7, 0x06,
    0x03, 0x1e, 0xce, 0xe1, 0xea, 0xf6, 0x05, 0xf9, 0x16, 0x15, 0x04, 0xe0,
    0x14, 0xf7, 0x1e, 0x1c, 0x0a, 0x27, 0xef, 0xf3, 0x0f, 0xf3, 0xee, 0x04,
    0xf8, 0xf1, 0x07, 0xe3, 0x05, 0x0b, 0x00, 0x1c, 0x15, 0x27, 0x07, 0xf7,
    0xfa, 0x0b, 0xfa, 0xfa, 0x17, 0x13, 0xe1, 0xf5, 0xfb, 0x0c, 0x21, 0x2f,
    0xd7, 0xfb, 0xf5, 0xfd, 0xd3, 0xf4, 0x07, 0x0e, 0xfd, 0x0b, 0xfc, 0xfa,
    0xf5, 0x0e, 0x02, 0xfa, 0xfa, 0x19, 0xfd, 0xfa, 0xfc, 0x13, 0x24, 0x0c,
    0xe4, 0x31, 0xf8, 0x12, 0xf4, 0x04, 0x18, 0x29, 0x27, 0x19, 0xfc, 0x08,
    0x11, 0xe3, 0x07, 0xfe, 0x26, 0x40, 0x05, 0x02, 0x04, 0x02, 0x0f, 0xee,
    0xf4, 0x27, 0xea, 0xf4, 0xf5, 0x11, 0x26, 0x0b, 0xe7, 0x05, 0xd2, 0xf6,
    0xea, 0xfa, 0x0b, 0xf9, 0xfa, 0x16, 0xba, 0x00, 0xfb, 0x0d, 0x0b, 0xf9,
    0xe6, 0xf6, 0xc5, 0xf8, 0xf6, 0x01, 0x0f, 0xed, 0xed, 0x13, 0xcd, 0x0d,
    0xda, 0x06, 0x17, 0xee, 0x07, 0x1d, 0xb8, 0xfa, 0xe2, 0xea, 0xf2, 0xee,
    0x04, 0x00, 0xdc, 0xd0, 0xfb, 0xf5, 0xec, 0xfe, 0xf1, 0x0d, 0xf0, 0xdb,
    0xf9, 0x0d, 0x03, 0x03, 0x0e, 0x0a, 0xda, 0xd6, 0x01, 0xf2, 0x06, 0x14,
    0x1c, 0x1f, 0xe8, 0xe8, 0x0e, 0xfd, 0x0c, 0xf5, 0xf3, 0x3d, 0xf3, 0x05,
    0x10, 0xfa, 0x1b, 0x18, 0x08, 0x36, 0x09, 0xf1, 0xeb, 0xf9, 0x22, 0x01,
    0xf3, 0xf7, 0xff, 0xf0, 0x0c, 0xe9, 0x01, 0x29, 0x21, 0x15, 0x03, 0xee,
    0xe9, 0x1a, 0xf7, 0x15, 0x06, 0x25, 0xfa, 0xf0, 0xe4, 0xf1, 0x1f, 0x01,
    0xdc, 0x2d, 0xce, 0xe9, 0xea, 0x0b, 0x06, 0x2c, 0x0a, 0x30, 0xe7, 0x09,
    0xf4, 0xf0, 0x10, 0x29, 0xf9, 0x3d, 0xe7, 0xdc, 0xe4, 0xf7, 0x3b, 0x27,
    0x23, 0x3a, 0x0a, 0x06, 0x0e, 0xfd, 0x2c, 0x07, 0x2b, 0x1c, 0xfa, 0x00,
    0xf9, 0x11, 0xea, 0x14, 0xeb, 0xfc, 0x18, 0x03, 0xf1, 0x16, 0x12, 0x04,
    0xcf, 0x12, 0xdd, 0xe4, 0x0e, 0xf0, 0x09, 0xe8, 0xf3, 0xfb, 0xa8, 0xf9,
    0xee, 0xfb, 0x1e, 0x1d, 0xfd, 0x05, 0xab, 0xe5, 0xff, 0x01, 0xfe, 0x04,
    0xf9, 0x02, 0xb9, 0xdc, 0xdf, 0x05, 0xf1, 0xef, 0xf1, 0x1e, 0xc7, 0xee,
    0xf7, 0x1e, 0x00, 0x00, 0xf8, 0x10, 0xec, 0xe8, 0x04, 0x0f, 0xf6, 0xff,
    0x04, 0x09, 0xe0, 0x0a, 0x0e, 0xe4, 0xf0, 0xf1, 0x16, 0x2b, 0xd3, 0xe1,
    0x0a, 0xef, 0xf9, 0xfe, 0x0b, 0x22, 0xf5, 0x01, 0x0a, 0xf8, 0x02, 0x00,
    0x17, 0x19, 0xf3, 0x05, 0x21, 0xfa, 0xee, 0xee, 0x12, 0xf2, 0xfa, 0xf5,
    0x05, 0x12, 0xee, 0xe4, 0x28, 0xfa, 0xf1, 0x03, 0x15, 0x16, 0x18, 0xfd,
    0x0f, 0x21, 0x04, 0xf4, 0xe5, 0x0c, 0x06, 0x13, 0xde, 0x36, 0xe8, 0xfb,
    0xe7, 0xfd, 0xf6, 0x12, 0x0e, 0x1d, 0xea, 0xf8, 0xd4, 0xe8, 0x19, 0x07,
    0xe5, 0x1c, 0xf7, 0x0c, 0xef, 0x05, 0x0f, 0x09, 0xdd, 0x1a, 0xea, 0xd7,
    0xf9, 0xf9, 0x12, 0x17, 0x2e, 0x10, 0x08, 0xfe, 0x14, 0xf5, 0x1d, 0xfa,
    0x06, 0x33, 0xed, 0xfe, 0xf7, 0x11, 0xf0, 0x15, 0xe2, 0x24, 0xf6, 0x0a,
    0xe2, 0xfc, 0x23, 0x12, 0xdd, 0x11, 0xfd, 0xe5, 0x08, 0xff, 0x15, 0xf6,
    0xf1, 0x1b, 0xae, 0xfe, 0xe6, 0x15, 0x2c, 0x2d, 0x15, 0x15, 0xc5, 0xf8,
    0xea, 0xe7, 0x07, 0x04, 0xfe, 0x28, 0xa1, 0xf2, 0xe1, 0xf9, 0xf8, 0xff,
    0xf4, 0x22, 0xb4, 0xdb, 0x03, 0x20, 0xe6, 0xf3, 0x0e, 0x19, 0xe3, 0x0a,
    0xfa, 0xee, 0xf3, 0xe5, 0xd8, 0xf9, 0xf1, 0xde, 0x06, 0x05, 0xf2, 0xf5,
    0xe7, 0x16, 0xd8, 0xfe, 0x07, 0xea, 0xee, 0x0e, 0xfa, 0xff, 0xdb, 0xe7,
    0x03, 0xed, 0x01, 0xfd, 0x09, 0x1a, 0xfa, 0xe6, 0x05, 0x10, 0xe9, 0x01,
    0x1f, 0x13, 0xf7, 0xf6, 0xfb, 0x13, 0xff, 0xdb, 0xed, 0xfe, 0x0a, 0x10,
    0x09, 0x29, 0xf5, 0x04, 0xf5, 0x26, 0x0d, 0x0c, 0xf9, 0x16, 0xfa, 0x02,
    0xf4, 0x2e, 0xde, 0xf5, 0xe1, 0x1d, 0xfb, 0x02, 0x0b, 0x23, 0x07, 0xea,
    0xd9, 0x0a, 0xf3, 0x0a, 0x0f, 0x1e, 0xe7, 0xf1, 0xd7, 0x0b, 0xf6, 0xff,
    0x0d, 0x24, 0xcc, 0x0a, 0xee, 0xda, 0x14, 0x12, 0x11, 0x29, 0xf4, 0x1a,
    0xef, 0x0b, 0xfa, 0xec, 0x0c, 0x1b, 0xf4, 0xff, 0xf5, 0xef, 0x0f, 0x10,
    0xd4, 0x04, 0xf9, 0xf8, 0xec, 0xf9, 0x21, 0x05, 0xd3, 0x27, 0xf3, 0x17,
    0xff, 0xf6, 0x15, 0xf9, 0xed, 0x0a, 0xac, 0x02, 0xfd, 0xfb, 0x04, 0x29,
    0x06, 0x03, 0xb8, 0xe6, 0xd5, 0x17, 0x09, 0x1b, 0xf6, 0x1b, 0xab, 0xdc,
    0xdf, 0xfd, 0x06, 0x09, 0x09, 0x37, 0xbb, 0xed, 0x19, 0xd7, 0xe2, 0xdd,
    0x05, 0x01, 0xec, 0xfb, 0xe4, 0x0e, 0xeb, 0xf0, 0x03, 0x17, 0x04, 0xeb,
    0x09, 0xee, 0xeb, 0xe7, 0x0c, 0x16, 0xcb, 0x0e, 0x17, 0xd8, 0xe1, 0xf8,
    0x2b, 0x19, 0xde, 0xeb, 0x10, 0xf2, 0xff, 0xf8, 0xee, 0x0e, 0xe7, 0xf0,
    0x15, 0x08, 0xf8, 0xdf, 0x06, 0x0d, 0xf9, 0x14, 0xfa, 0x0b, 0x04, 0xfd,
    0x15, 0x23, 0x20, 0xff, 0xfd, 0x1d, 0x0c, 0xf1, 0xfe, 0x15, 0x0a, 0x02,
    0xed, 0xfe, 0xfb, 0x04, 0xfb, 0x1e, 0xdd, 0x05, 0xe0, 0x16, 0xf9, 0xf6,
    0xfd, 0x32, 0xdc, 0xf2, 0xd3, 0x08, 0xf4, 0xec, 0x17, 0x25, 0xe2, 0xf0,
    0xee, 0xf1, 0x0d, 0xfe, 0x13, 0x2d, 0x01, 0x11, 0xd4, 0xe4, 0x07, 0xfb,
    0x32, 0x11, 0x14, 0x07, 0xd7, 0x02, 0x10, 0xeb, 0x2b, 0x1d, 0x01, 0xfc,
    0xf3, 0xf0, 0x13, 0x1a, 0xdb, 0x20, 0x00, 0xf0, 0xf0, 0x05, 0x16, 0x03,
    0xd4, 0xe3, 0xc2, 0xf0, 0x06, 0x02, 0x1e, 0x0a, 0xec, 0x1f, 0xab, 0xea,
    0xfa, 0xe3, 0x20, 0x22, 0x03, 0x1b, 0xb3, 0x0e, 0xe3, 0xf3, 0x1d, 0x27,
    0xe3, 0x10, 0xa7, 0xda, 0xf3, 0x00, 0x0a, 0x0a, 0x04, 0xfb, 0xb2, 0x0f,
    0x0c, 0xf5, 0x07, 0xff, 0x13, 0x1e, 0xdb, 0xf6, 0xf9, 0xef, 0xe8, 0xe7,
    0xfb, 0x18, 0xeb, 0xec, 0x09, 0xda, 0xf1, 0xf0, 0x0b, 0x04, 0xe1, 0xfa,
    0x1c, 0x25, 0xee, 0x01, 0x0b, 0x29, 0xd7, 0x0c, 0x04, 0x0b, 0xef, 0xfd,
    0x1c, 0xfc, 0xf1, 0xfb, 0x0b, 0x0f, 0xdf, 0xed, 0x17, 0x38, 0x0c, 0xd7,
    0xff, 0xfd, 0x01, 0xfc, 0xfb, 0xfb, 0x18, 0x1a, 0x18, 0xe3, 0xf9, 0xf4,
    0xfa, 0x20, 0x06, 0x09, 0x11, 0x08, 0x1d, 0xf8, 0xfa, 0x1d, 0xf5, 0x1c,
    0xf5, 0xfe, 0x03, 0x07, 0xe4, 0x33, 0xc8, 0x0c, 0xe1, 0x13, 0xff, 0xe5,
    0x10, 0x2c, 0xd3, 0xf0, 0xed, 0x04, 0x07, 0x01, 0xf1, 0x16, 0xe0, 0x13,
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    0xf7, 0x13, 0xca, 0xff, 0x03, 0x06, 0xe9, 0xf7, 0x06, 0x08, 0xd7, 0xf3,
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    0xe7, 0x0d, 0x08, 0xec, 0xe8, 0x16, 0x67, 0x46, 0xc8, 0x16, 0xf1, 0x02,
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    0xfd, 0x1f, 0xee, 0xff, 0xed, 0xf8, 0xe0, 0xff, 0xfd, 0x2b, 0x0a, 0xf5,
    0x15, 0x1d, 0xf3, 0x3f, 0x16, 0xf6, 0xf2, 0xee, 0xf4, 0xef, 0xf0, 0x56,
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    0xe0, 0x0e, 0xe6, 0x20, 0x0a, 0xfd, 0xdf, 0xee, 0x0b, 0x02, 0xee, 0x1f,
    0xfb, 0x06, 0xd2, 0xed, 0xfe, 0xeb, 0xfc, 0x12, 0xfd, 0x14, 0x00, 0xd8,
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    0xf4, 0x03, 0xee, 0xeb, 0xf0, 0xef, 0xf2, 0x06, 0x04, 0x00, 0xf4, 0x0f,
    0x09, 0x06, 0xf7, 0x0b, 0xfd, 0x01, 0x03, 0x03, 0xf4, 0xf6, 0xdd, 0x14,
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    0x06, 0x10, 0xe6, 0xef, 0xfc, 0x12, 0xf9, 0xf4, 0x1b, 0x2f, 0xe3, 0x0f,
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    0xf5, 0x02, 0x25, 0x5a, 0x49, 0xd4, 0xe6, 0x24, 0x1e, 0xf7, 0x0e, 0x5c,
    0x5d, 0xf0, 0xf9, 0xe4, 0x1c, 0xeb, 0x28, 0x7f, 0x5b, 0xec, 0xfa, 0xdb,
    0x0c, 0xf5, 0x20, 0x49, 0x51, 0xe1, 0xed, 0xe6, 0x0e, 0x26, 0x28, 0x33,
    0x35, 0x05, 0xe1, 0xe4, 0x1f, 0xfc, 0xf9, 0x39, 0x18, 0x04, 0xed, 0xed,
    0x01, 0xe7, 0xe6, 0x08, 0x09, 0x03, 0xe7, 0xf9, 0x0e, 0x06, 0xec, 0x08,
    0x12, 0x1a, 0xda, 0xef, 0xdf, 0xf9, 0xe2, 0x1e, 0x1c, 0x00, 0x12, 0xd7,
    0x01, 0xf7, 0x21, 0x17, 0x13, 0x19, 0xde, 0xe0, 0xec, 0x16, 0x01, 0x1b,
    0x06, 0x0c, 0xf0, 0xe8, 0x18, 0x03, 0x06, 0x0e, 0x09, 0xfa, 0x03, 0xf3,
    0xdd, 0x01, 0xfb, 0x0a, 0x2a, 0xf4, 0xf6, 0xda, 0xe9, 0xfe, 0xe9, 0x12,
    0x19, 0xe9, 0x05, 0xdf, 0x00, 0xeb, 0xf2, 0x10, 0x0c, 0xe1, 0xcd, 0xcb,
    0xf2, 0x1f, 0xd9, 0x0c, 0xfa, 0xfb, 0xe8, 0xde, 0x00, 0xfc, 0xe5, 0x00,
    0x11, 0x02, 0xe6, 0x17, 0x14, 0x00, 0xf2, 0xfd, 0x00, 0xe1, 0x10, 0x24,
    0x12, 0xec, 0xed, 0x1e, 0x09, 0x18, 0x03, 0x0c, 0x04, 0xf4, 0x15, 0x0f,
    0x10, 0x18, 0xd6, 0x29, 0x10, 0x04, 0x1c, 0xef, 0x0f, 0x0c, 0xc7, 0x04,
    0xfe, 0xeb, 0xff, 0xf5, 0xe3, 0x15, 0xfe, 0xcb, 0x10, 0xff, 0x12, 0xfb,
    0xe4, 0xeb, 0xf9, 0x00, 0x02, 0xf1, 0x14, 0x13, 0x01, 0x02, 0xf9, 0x01,
    0x06, 0x0c, 0xf5, 0x0a, 0x1e, 0x01, 0x19, 0x0e, 0x05, 0xf5, 0x0a, 0xff,
    0xff, 0xf2, 0xfb, 0xdb, 0xf8, 0x06, 0x17, 0xf2, 0xf7, 0x0d, 0x0e, 0xf4,
    0xfa, 0xf7, 0x14, 0xdb, 0xe0, 0xfd, 0x08, 0x16, 0xf7, 0x16, 0xfc, 0x09,
    0x27, 0x07, 0x09, 0xfb, 0x0a, 0xfc, 0x0c, 0xe4, 0xdb, 0xee, 0xff, 0x10,
    0xf3, 0x09, 0xfa, 0xf4, 0x23, 0xf3, 0xf4, 0x19, 0xff, 0xfa, 0xff, 0x19,
    0x0f, 0x11, 0xed, 0xec, 0xf8, 0x0f, 0x10, 0xf3, 0xff, 0x0b, 0xf7, 0x06,
    0x0b, 0x0e, 0x07, 0xe4, 0x18, 0x0a, 0x08, 0x0e, 0x02, 0x0a, 0x05, 0x19,
    0x02, 0xf3, 0xfe, 0xfe, 0x0b, 0x0f, 0xfc, 0xfa, 0x05, 0xf9, 0xe2, 0xf9,
    0x1b, 0xf7, 0x0f, 0x07, 0xfc, 0x12, 0xfe, 0x01, 0xfd, 0xf0, 0x04, 0xf4,
    0xfd, 0x07, 0xf2, 0x04, 0x04, 0x07, 0xef, 0x0c, 0xed, 0x0e, 0xf6, 0xef,
    0x08, 0x07, 0x04, 0xe9, 0xf3, 0x20, 0xda, 0x15, 0xf8, 0xff, 0xec, 0xe0,
    0xf6, 0xff, 0xe9, 0x08, 0x01, 0x10, 0xf0, 0xfc, 0xe9, 0x08, 0xe8, 0xf5,
    0xf8, 0xe5, 0x17, 0xe6, 0x03, 0xfc, 0x09, 0xf5, 0xdd, 0xf2, 0xff, 0x05,
    0xf6, 0xf8, 0xf5, 0x07, 0xfc, 0xf1, 0x04, 0xf3, 0x13, 0xe1, 0x0f, 0xf2,
    0x0a, 0xf9, 0xfd, 0x1c, 0xe0, 0x11, 0x1b, 0xe6, 0xef, 0x05, 0x05, 0x0c,
    0x23, 0x10, 0x09, 0xfe, 0xf7, 0x1a, 0xf1, 0xfc, 0x11, 0x1d, 0xff, 0x03,
    0x03, 0xe6, 0x07, 0x11, 0x0c, 0x0d, 0x16, 0x05, 0x05, 0x25, 0xf3, 0x10,
    0x10, 0x06, 0x09, 0xe8, 0x1a, 0xf0, 0xee, 0x09, 0xff, 0x24, 0xf7, 0xfb,
    0xe6, 0x06, 0xfa, 0x08, 0x03, 0x00, 0xf2, 0x04, 0xf0, 0xeb, 0x14, 0x1c,
    0x03, 0x21, 0x14, 0x1d, 0xfe, 0x03, 0xf6, 0x02, 0x09, 0xff, 0x00, 0x13,
    0xef, 0x10, 0x1e, 0x0b, 0x1d, 0x1c, 0xf1, 0xf6, 0xe7, 0xfd, 0x14, 0x01,
    0xff, 0x13, 0xf7, 0xfc, 0x00, 0x21, 0xe3, 0xeb, 0x07, 0x0e, 0x09, 0xf1,
    0xf8, 0xfd, 0x03, 0xee, 0x19, 0xfd, 0xff, 0xfb, 0xff, 0xea, 0xfb, 0x07,
    0xf0, 0x0a, 0x04, 0x04, 0x0b, 0x12, 0xfe, 0x0b, 0xe0, 0xff, 0xf6, 0xe5,
    0xfc, 0x11, 0xed, 0xfd, 0x15, 0x03, 0xdd, 0xdb, 0x04, 0xfe, 0xff, 0x0e,
    0xff, 0xfa, 0xfb, 0xe5, 0xef, 0xf6, 0xfe, 0x22, 0x0f, 0xe8, 0xfe, 0xf4,
    0xfd, 0xd9, 0x03, 0x0a, 0xdf, 0xcf, 0xf1, 0x14, 0x05, 0xfd, 0xfb, 0xf3,
    0xfb, 0xfb, 0x0f, 0xf8, 0x05, 0x09, 0x03, 0xf7, 0x05, 0x05, 0x13, 0xfb,
    0xeb, 0x23, 0xe7, 0x18, 0xfb, 0x00, 0xfe, 0xdd, 0xe9, 0xea, 0xd3, 0xe8,
    0x1a, 0xef, 0x01, 0xf1, 0x09, 0x1d, 0xd8, 0xfc, 0xda, 0x19, 0x03, 0xec,
    0xe5, 0xf3, 0xed, 0x0a, 0xf4, 0x13, 0x0b, 0xf7, 0x0c, 0x00, 0xf9, 0xea,
    0xe3, 0xfe, 0xff, 0x0d, 0x0a, 0x1b, 0xd7, 0x17, 0xeb, 0xe9, 0x00, 0x0e,
    0xee, 0x24, 0xef, 0x09, 0x07, 0xf0, 0xf5, 0x07, 0xf5, 0xf5, 0x10, 0x17,
    0x06, 0xf7, 0xfc, 0x02, 0xfb, 0xf9, 0xe7, 0x0a, 0x26, 0xf3, 0x01, 0x01,
    0x09, 0x0b, 0x02, 0x27, 0xf8, 0xee, 0xfd, 0x1c, 0xf8, 0xf2, 0x0f, 0xfc,
    0x0d, 0xe0, 0xea, 0x02, 0x0b, 0x00, 0xe0, 0x08, 0xfe, 0x10, 0x04, 0xfe,
    0xeb, 0x13, 0x01, 0x0c, 0x0e, 0xed, 0x09, 0x01, 0x0c, 0xe3, 0x10, 0xdf,
    0xd1, 0x14, 0xf3, 0xef, 0x09, 0xf0, 0xee, 0xe5, 0x11, 0xf4, 0xf6, 0x00,
    0xe8, 0x20, 0x0a, 0xfc, 0xea, 0xf7, 0x02, 0x16, 0xe7, 0xf3, 0x0d, 0xe4,
    0x04, 0xe6, 0xef, 0xf8, 0x0f, 0x23, 0x02, 0xe0, 0x01, 0x01, 0x01, 0x05,
    0xf5, 0x0d, 0xf5, 0xf5, 0xe1, 0xff, 0x04, 0x00, 0xf4, 0x0d, 0xee, 0xf1,
    0xef, 0xf7, 0x0b, 0xff, 0x1b, 0xec, 0x05, 0xe7, 0xf3, 0x13, 0x12, 0xf2,
    0xf3, 0xfc, 0xea, 0x06, 0xfe, 0x13, 0x12, 0xdb, 0x11, 0xe2, 0xfc, 0x0d,
    0x1c, 0xe8, 0x1d, 0xfc, 0xf2, 0xe2, 0x13, 0x1d, 0xda, 0xf6, 0x1c, 0x18,
    0x1e, 0xf4, 0xfa, 0x03, 0xdc, 0x0f, 0xff, 0xff, 0x18, 0x0b, 0xed, 0xf1,
    0xf8, 0x02, 0xf4, 0x10, 0xf9, 0xeb, 0x0b, 0x0e, 0x0f, 0x01, 0x02, 0x1b,
    0x06, 0x10, 0x00, 0xe7, 0x23, 0x0d, 0xf6, 0x11, 0x08, 0xf5, 0x0f, 0x05,
    0x13, 0xf7, 0x01, 0x01, 0x0c, 0xf6, 0xf9, 0xf0, 0x29, 0x01, 0xe9, 0x11,
    0x02, 0xfa, 0xeb, 0x16, 0x0e, 0x10, 0x09, 0x0e, 0x1c, 0x0a, 0xe3, 0xd3,
    0x01, 0xe3, 0x00, 0x06, 0xe2, 0xe9, 0x19, 0xef, 0x12, 0xf3, 0xfc, 0x02,
    0x0b, 0x0c, 0x0d, 0xed, 0xfd, 0xf6, 0xf9, 0xe9, 0xf2, 0x28, 0xfe, 0x03,
    0xec, 0x03, 0x00, 0xf8, 0xde, 0x0d, 0x25, 0x07, 0x1a, 0xe7, 0xfd, 0x29,
    0xd8, 0xf7, 0xfb, 0xde, 0x0c, 0x08, 0x06, 0x22, 0xee, 0x1d, 0x05, 0x07,
    0xf0, 0xfb, 0xfe, 0x07, 0xf1, 0x04, 0xe9, 0x01, 0xfc, 0xf1, 0x00, 0xeb,
    0xe3, 0x08, 0xec, 0xfe, 0x04, 0xeb, 0xfc, 0x01, 0xf6, 0x0e, 0xdf, 0xf8,
    0x12, 0xe3, 0x16, 0xdc, 0x21, 0x0a, 0xe6, 0x06, 0xe5, 0x10, 0x07, 0xf7,
    0x1e, 0xde, 0xe3, 0x07, 0x16, 0xed, 0x23, 0xf2, 0x12, 0x0d, 0xe9, 0xf9,
    0xe8, 0xfe, 0x0e, 0x02, 0x18, 0x0a, 0xea, 0xec, 0xfb, 0xfe, 0x0c, 0x1b,
    0x19, 0x20, 0xfa, 0x07, 0xe5, 0x0c, 0x04, 0x27, 0xdb, 0xe6, 0xfe, 0x0d,
    0x0a, 0x0a, 0xfe, 0x39, 0xdd, 0xde, 0x05, 0xec, 0x09, 0x05, 0x0a, 0x2c,
    0xf4, 0x02, 0x1f, 0xd3, 0x24, 0xee, 0x0f, 0x3c, 0xf5, 0xfd, 0xf8, 0xf8,
    0x12, 0xf5, 0xf3, 0x19, 0xf9, 0xda, 0xf6, 0x0a, 0x0a, 0xf4, 0x09, 0x0f,
    0xfc, 0x00, 0x01, 0x01, 0xf3, 0xf8, 0x05, 0xf3, 0x0c, 0x19, 0x0e, 0xfd,
    0xfa, 0xe1, 0xfc, 0x0c, 0x03, 0xfb, 0x1b, 0x06, 0xcc, 0xe4, 0x08, 0xf9,
    0x10, 0xe9, 0x06, 0x00, 0x17, 0xe8, 0x0d, 0x12, 0xca, 0xf5, 0x23, 0xe4,
    0x21, 0xf6, 0x19, 0x33, 0xdd, 0xfa, 0x0c, 0x01, 0x14, 0x07, 0x00, 0x34,
    0xda, 0x05, 0x07, 0x01, 0x07, 0xe4, 0x06, 0x24, 0x02, 0xff, 0xf0, 0x09,
    0xfc, 0xf4, 0x03, 0x06, 0xee, 0x08, 0xe2, 0x1d, 0xfa, 0x0c, 0xfc, 0x02,
    0x03, 0xe5, 0xf0, 0xe2, 0x0a, 0x18, 0x12, 0x0c, 0x1e, 0x20, 0xed, 0x20,
    0xe4, 0x01, 0x2a, 0x09, 0x0d, 0x0e, 0xd0, 0xf4, 0xdd, 0xfd, 0x2b, 0xf2,
    0x08, 0x0c, 0xf8, 0xf7, 0xfc, 0xf9, 0x15, 0xef, 0x19, 0x1c, 0x01, 0xff,
    0xe2, 0x01, 0xf3, 0x30, 0x0e, 0xfb, 0x15, 0xe8, 0x1c, 0x00, 0xfa, 0x16,
    0xef, 0xea, 0xfb, 0x05, 0xf0, 0x0e, 0x02, 0x13, 0xf4, 0x01, 0x03, 0xe5,
    0x29, 0x07, 0x09, 0x24, 0xf9, 0xe3, 0xf8, 0xde, 0x2d, 0xf4, 0xf5, 0x40,
    0xed, 0xdf, 0x07, 0xef, 0x0f, 0x0a, 0x0b, 0x32, 0x0d, 0xe8, 0x00, 0xe6,
    0xf6, 0xfc, 0xfd, 0x19, 0x11, 0x09, 0xf3, 0x03, 0xea, 0xf1, 0xfb, 0x02,
    0xfd, 0x06, 0xff, 0xfe, 0x09, 0xec, 0x06, 0x0c, 0x15, 0xf9, 0x06, 0xd7,
    0xe3, 0xf7, 0xed, 0x01, 0x03, 0xfd, 0x14, 0x01, 0x0e, 0xe0, 0x37, 0x0d,
    0xd2, 0x18, 0x2f, 0xea, 0x12, 0x0d, 0x05, 0x3a, 0xd5, 0x07, 0x1e, 0xf2,
    0x21, 0x11, 0xf9, 0x36, 0xd3, 0xf5, 0x12, 0xf6, 0xfb, 0xf6, 0x06, 0x0f,
    0xde, 0xf9, 0x06, 0x09, 0xdf, 0xff, 0x0b, 0xf3, 0xf5, 0x01, 0xf1, 0xea,
    0xf2, 0x02, 0x12, 0xfc, 0x0e, 0xee, 0xf8, 0xeb, 0x00, 0xef, 0x21, 0x0f,
    0x09, 0xef, 0xeb, 0x1e, 0xef, 0xf2, 0x26, 0xf9, 0x17, 0xf1, 0xf1, 0xf0,
    0x0c, 0x10, 0x1d, 0xff, 0x1d, 0x06, 0x03, 0xf6, 0xfb, 0x14, 0x1b, 0x03,
    0x22, 0xfd, 0xec, 0x03, 0xfa, 0xf8, 0x01, 0x2b, 0x1e, 0x1b, 0x09, 0x09,
    0x07, 0xff, 0xf0, 0x20, 0xee, 0x14, 0xfb, 0xf6, 0xf8, 0x11, 0xd9, 0x29,
    0xf4, 0xfa, 0x07, 0xef, 0x20, 0xf9, 0xf2, 0x30, 0xee, 0xf0, 0xf3, 0xd6,
    0x0d, 0xfe, 0x03, 0x36, 0xf5, 0xd7, 0x01, 0xe6, 0x04, 0xf0, 0x05, 0x1f,
    0x0f, 0xdd, 0xff, 0xf8, 0x1f, 0xf2, 0x04, 0x37, 0xfa, 0x00, 0xfd, 0xf8,
    0x10, 0xe1, 0xfb, 0x0d, 0xed, 0xf6, 0xe2, 0xfe, 0x08, 0xfe, 0x07, 0x08,
    0x08, 0x11, 0x0a, 0xf0, 0xf8, 0xf5, 0x04, 0xea, 0x08, 0x12, 0x06, 0x0d,
    0x0f, 0x10, 0x40, 0x28, 0xc0, 0xfb, 0x3f, 0x08, 0x1d, 0x09, 0x1b, 0x3d,
    0xee, 0xf4, 0x29, 0x13, 0x20, 0xfc, 0x11, 0x4c, 0xdb, 0x02, 0x15, 0x05,
    0xec, 0xeb, 0x0a, 0x22, 0xe7, 0x00, 0x02, 0x01, 0xd4, 0xea, 0x0a, 0xf3,
    0xe3, 0xf8, 0xf5, 0xfa, 0x01, 0x0d, 0x19, 0x06, 0x24, 0x13, 0x02, 0xf5,
    0xf1, 0xf1, 0x1b, 0x0f, 0x19, 0x04, 0xe3, 0xf9, 0xe7, 0x02, 0x29, 0xfc,
    0x29, 0xec, 0xe9, 0x04, 0xdc, 0x22, 0x1d, 0xfd, 0x1f, 0x01, 0xec, 0xe8,
    0xf5, 0x14, 0x1b, 0x19, 0x06, 0x0e, 0x02, 0x0d, 0xf9, 0x06, 0xfc, 0x15,
    0x07, 0xfa, 0x0c, 0xe1, 0x18, 0x1a, 0xe8, 0x1b, 0xe9, 0xef, 0x0a, 0x18,
    0xfc, 0x05, 0xf9, 0x14, 0xdc, 0x04, 0x01, 0xff, 0x07, 0xfd, 0xf0, 0x2c,
    0xf2, 0xec, 0x0e, 0xe7, 0x1a, 0x05, 0xe8, 0x35, 0x13, 0x09, 0xf9, 0x07,
    0xfe, 0xfa, 0x0d, 0x40, 0x0c, 0xea, 0xf4, 0x04, 0x01, 0x11, 0xfc, 0x23,
    0xeb, 0xf4, 0xe9, 0x04, 0xeb, 0xe7, 0x07, 0x09, 0xfb, 0xf1, 0xf6, 0xfd,
    0x02, 0xfa, 0x02, 0xff, 0x00, 0xff, 0xf1, 0xf1, 0x1a, 0xe9, 0x10, 0xe3,
    0x0b, 0x0c, 0x08, 0x04, 0x1b, 0x0a, 0x2b, 0x10, 0xe1, 0x01, 0x1f, 0x06,
    0x04, 0xec, 0x19, 0x49, 0xee, 0xf8, 0x22, 0x0c, 0x20, 0x02, 0x07, 0x31,
    0xe7, 0xff, 0x0f, 0xf0, 0xfd, 0xea, 0x13, 0x26, 0xce, 0xfa, 0xff, 0xee,
    0xe9, 0xfe, 0x15, 0x08, 0x04, 0x05, 0x0d, 0xfa, 0xdd, 0xf8, 0x07, 0x0b,
    0x33, 0xef, 0xec, 0xf9, 0xd9, 0xe6, 0x1d, 0x10, 0x41, 0xf6, 0xdf, 0x11,
    0xe3, 0x14, 0x1d, 0xfb, 0x2b, 0x15, 0xdc, 0x09, 0xf6, 0x05, 0x16, 0x00,
    0x1c, 0x27, 0xe4, 0xfc, 0xf7, 0x16, 0x08, 0x08, 0x2f, 0xdd, 0xf8, 0xfa,
    0xe9, 0x0e, 0x0b, 0x0b, 0x02, 0x12, 0x02, 0xfd, 0x19, 0x03, 0xeb, 0x11,
    0xf4, 0x09, 0x09, 0x15, 0x12, 0x0d, 0xef, 0x1c, 0xe4, 0xfe, 0x17, 0x0c,
    0x09, 0x04, 0xea, 0x2f, 0xf2, 0x1e, 0x02, 0xfb, 0xfe, 0xe3, 0x00, 0x2e,
    0x04, 0xf9, 0x0c, 0x05, 0x27, 0x0c, 0x07, 0x2d, 0xf7, 0x0b, 0xfb, 0xf9,
    0x1c, 0xdf, 0x11, 0x36, 0x05, 0xf2, 0x02, 0xf8, 0x0b, 0x07, 0x05, 0xfb,
    0xfc, 0x0e, 0x13, 0xfa, 0xfb, 0x09, 0xf5, 0xfd, 0x06, 0x15, 0xf9, 0x03,
    0x18, 0xfd, 0x1a, 0x0a, 0x03, 0xe2, 0xfb, 0x00, 0x1e, 0xfe, 0x4f, 0x27,
    0xe1, 0xf7, 0x31, 0xf0, 0x1b, 0xec, 0x07, 0x5f, 0xe2, 0xf8, 0x40, 0x05,
    0x17, 0x24, 0x0c, 0x3c, 0xf3, 0x10, 0x13, 0xf8, 0x0b, 0xf3, 0xf9, 0x36,
    0xe1, 0xf3, 0xf4, 0xe8, 0xef, 0xf8, 0xfc, 0xeb, 0xe3, 0xfb, 0xf0, 0xee,
    0xdb, 0x06, 0x0c, 0x11, 0x1e, 0x10, 0xe2, 0xe9, 0xeb, 0x0d, 0x34, 0x0f,
    0x43, 0xd9, 0xef, 0x08, 0xec, 0x05, 0x1d, 0x02, 0x33, 0xef, 0xf4, 0xf7,
    0xe6, 0xf9, 0x22, 0x07, 0x04, 0x06, 0xe9, 0x02, 0xf0, 0xfc, 0x24, 0x20,
    0x24, 0x17, 0xe6, 0x0f, 0x05, 0xf6, 0xfc, 0x1f, 0xf2, 0x01, 0x0d, 0xe7,
    0xff, 0x1d, 0xf0, 0xfa, 0xd0, 0x00, 0xff, 0x0e, 0x23, 0xf9, 0xf3, 0x11,
    0xde, 0x0d, 0x05, 0x04, 0x0b, 0x0b, 0xfb, 0x26, 0x0d, 0x0d, 0xff, 0xe8,
    0x16, 0xe8, 0x0b, 0x3c, 0x18, 0xe4, 0x04, 0xff, 0xfa, 0xf3, 0xff, 0x40,
    0xee, 0x06, 0xfc, 0x0d, 0x00, 0xf7, 0x13, 0x3f, 0xf7, 0x13, 0x06, 0x08,
    0xf9, 0x13, 0xf2, 0x19, 0xfd, 0xf9, 0xf3, 0xe6, 0xfc, 0x07, 0xf6, 0xfd,
    0x0a, 0x22, 0x00, 0x01, 0x19, 0xff, 0xe7, 0xff, 0x08, 0xfd, 0x03, 0xfd,
    0x1f, 0xe7, 0x28, 0x08, 0xde, 0xf3, 0x43, 0xf6, 0x0c, 0xfe, 0x1e, 0x52,
    0xf2, 0x04, 0x17, 0xf2, 0x08, 0x0d, 0x04, 0x38, 0xde, 0x0c, 0x10, 0xef,
    0xdf, 0x0f, 0x01, 0x24, 0xde, 0xe1, 0x0d, 0xfd, 0xd4, 0xf6, 0x12, 0x0e,
    0xed, 0x01, 0xf0, 0xf3, 0xfd, 0xff, 0x18, 0xf3, 0x36, 0xda, 0xf6, 0xef,
    0xe8, 0xef, 0x37, 0x27, 0x4e, 0xf8, 0xf4, 0xff, 0xe5, 0xf3, 0x32, 0x0b,
    0x36, 0x08, 0xe9, 0xf6, 0xe2, 0x13, 0x21, 0xfe, 0x12, 0xed, 0xdd, 0xfb,
    0xf8, 0x05, 0x0f, 0x03, 0x1c, 0x04, 0xfc, 0xf2, 0x23, 0x0e, 0x03, 0xfc,
    0xf9, 0x18, 0xf7, 0x01, 0x1b, 0x03, 0xf5, 0xfd, 0xde, 0xf3, 0x19, 0xfc,
    0x11, 0x02, 0xe7, 0x13, 0xde, 0xd8, 0xf2, 0x05, 0x28, 0x02, 0x02, 0x27,
    0x07, 0x08, 0xff, 0x07, 0x27, 0x0e, 0x19, 0x40, 0xfb, 0x02, 0x0c, 0xf6,
    0x0d, 0x07, 0x0f, 0x47, 0xf8, 0x05, 0x0e, 0xfd, 0x03, 0x1e, 0x07, 0x32,
    0xe7, 0xf6, 0x24, 0x01, 0x01, 0x02, 0x0a, 0xff, 0xf6, 0x26, 0x15, 0xf0,
    0x04, 0x13, 0x03, 0xfa, 0xfe, 0xf6, 0xf1, 0x09, 0x2a, 0xe6, 0xea, 0xf6,
    0x17, 0x13, 0xeb, 0xff, 0x15, 0xeb, 0x23, 0x06, 0xc8, 0xf6, 0x33, 0xeb,
    0xf4, 0xe7, 0x12, 0x2a, 0xe3, 0xe6, 0x32, 0xfa, 0x16, 0x15, 0x17, 0x40,
    0xf1, 0x08, 0x1a, 0xf3, 0xf6, 0x0c, 0x0c, 0x11, 0xd0, 0x22, 0x02, 0xee,
    0xea, 0xf4, 0xf8, 0xf9, 0x13, 0x10, 0x17, 0xf5, 0xf1, 0x0a, 0x0e, 0xfd,
    0x32, 0xda, 0xf1, 0xe2, 0xdb, 0xf2, 0x34, 0x1f, 0x53, 0xfc, 0xe4, 0xf2,
    0xf6, 0xf2, 0x1d, 0x04, 0x4a, 0xec, 0xee, 0x06, 0xdf, 0x01, 0x1a, 0x04,
    0x27, 0xfc, 0xe6, 0xfd, 0xd9, 0xfd, 0x0e, 0x00, 0x0c, 0x16, 0xf3, 0x03,
    0xf7, 0xfc, 0x0e, 0x0f, 0x09, 0x06, 0x06, 0x04, 0x08, 0x02, 0xed, 0xf5,
    0xe4, 0xe6, 0x07, 0x06, 0x03, 0x18, 0xea, 0x13, 0xe2, 0xfa, 0x10, 0xf2,
    0x02, 0xec, 0x03, 0x3c, 0xf6, 0xf6, 0x0a, 0x10, 0x09, 0xf8, 0x15, 0x24,
    0xfd, 0x0d, 0x09, 0x01, 0x00, 0xff, 0x00, 0x1a, 0xf0, 0xee, 0x08, 0x03,
    0x1d, 0x05, 0x16, 0x46, 0xe6, 0xf8, 0x08, 0x00, 0x09, 0x09, 0xff, 0x01,
    0xfc, 0x20, 0xfc, 0xec, 0x05, 0x1b, 0x03, 0xf1, 0x12, 0xe4, 0xfa, 0x24,
    0x1c, 0xf5, 0xf2, 0x05, 0x11, 0xe7, 0xfa, 0x02, 0x20, 0xea, 0x31, 0x10,
    0xcf, 0xd8, 0x33, 0xee, 0xff, 0x09, 0x20, 0x3f, 0xe2, 0x0a, 0x29, 0xee,
    0x3a, 0xf2, 0x1e, 0x39, 0x02, 0x1e, 0xfe, 0xf2, 0xef, 0xe2, 0x0d, 0x0f,
    0xf1, 0x19, 0x02, 0xe7, 0xec, 0xff, 0xfe, 0xe4, 0xfe, 0xfb, 0x02, 0xf6,
    0xf1, 0xf4, 0x07, 0x1a, 0x2a, 0xf9, 0x06, 0xf9, 0xda, 0xf4, 0x22, 0x02,
    0x4f, 0x0a, 0xf3, 0xfc, 0xf3, 0xf6, 0x25, 0x0a, 0x28, 0x01, 0xf7, 0x09,
    0xe6, 0x05, 0x28, 0xf7, 0x1e, 0xf2, 0xee, 0x13, 0xee, 0x05, 0x0f, 0x0a,
    0x09, 0xe8, 0xe8, 0x0e, 0x05, 0x12, 0x0f, 0x15, 0x02, 0xec, 0xf8, 0x02,
    0xf7, 0x05, 0xf8, 0xff, 0xdc, 0x00, 0x01, 0x00, 0x12, 0x17, 0xec, 0x19,
    0xfa, 0x09, 0xfa, 0xf3, 0x1d, 0x0b, 0x07, 0x25, 0xea, 0x0c, 0xf5, 0xfa,
    0x04, 0xf7, 0xfe, 0x33, 0xfe, 0x14, 0xef, 0x04, 0xf0, 0x00, 0x00, 0x3a,
    0xea, 0xfa, 0x10, 0x01, 0xe4, 0x00, 0xff, 0x23, 0xe9, 0x26, 0x15, 0x10,
    0x04, 0x14, 0x0d, 0x08, 0xf8, 0xfd, 0x10, 0xfb, 0x00, 0x21, 0x06, 0xfa,
    0x0f, 0x08, 0xf1, 0x09, 0x28, 0xf0, 0xd8, 0x0d, 0x08, 0x09, 0x02, 0xfb,
    0x12, 0x03, 0x0e, 0xfb, 0xce, 0xf0, 0x39, 0xe5, 0x09, 0xf6, 0x1f, 0x35,
    0xdd, 0x1c, 0x25, 0xef, 0x17, 0x0c, 0xf6, 0x3e, 0xf0, 0x21, 0x08, 0xff,
    0xd7, 0xfc, 0xfd, 0x1f, 0xe5, 0x18, 0x12, 0xe9, 0xf5, 0xe9, 0x12, 0xf6,
    0x02, 0x13, 0xf4, 0x0a, 0xfd, 0x03, 0x09, 0x08, 0x2f, 0x07, 0xee, 0xfd,
    0xd7, 0x00, 0x2b, 0x29, 0x3b, 0xdb, 0xde, 0xf1, 0xe1, 0xf7, 0x47, 0x12,
    0x35, 0x0c, 0xe4, 0x09, 0xef, 0x17, 0x2b, 0xea, 0x2d, 0xf8, 0xe8, 0x18,
    0xef, 0x03, 0x11, 0x0a, 0x10, 0xff, 0xe8, 0x07, 0x0c, 0x07, 0x03, 0x18,
    0x05, 0x08, 0xf8, 0xf8, 0x06, 0x18, 0xe9, 0xf9, 0xe0, 0x0f, 0x0d, 0x18,
    0x04, 0x01, 0xf0, 0x1c, 0xf6, 0x14, 0xfd, 0x12, 0x0c, 0x0c, 0x02, 0x34,
    0xf6, 0xe6, 0xfd, 0xf9, 0xf9, 0xfd, 0x00, 0x2a, 0xfc, 0xf9, 0xff, 0x0a,
    0xfe, 0x1b, 0xf5, 0x34, 0xdc, 0xf9, 0x15, 0x13, 0xe7, 0x1b, 0xf7, 0x25,
    0xfd, 0x09, 0x08, 0x0a, 0xf0, 0x17, 0x0f, 0x04, 0xf4, 0xe9, 0x06, 0x07,
    0xf5, 0x02, 0xfc, 0xf5, 0x09, 0xee, 0xf1, 0x07, 0x38, 0x03, 0x05, 0x0f,
    0x16, 0x0f, 0xed, 0xff, 0x21, 0xf8, 0x34, 0x07, 0xd1, 0xf9, 0x27, 0x00,
    0x0c, 0x21, 0x18, 0x42, 0xe6, 0x02, 0x1a, 0xf1, 0x2f, 0xf1, 0x0e, 0x3b,
    0xee, 0xf8, 0x08, 0xea, 0xfe, 0xf9, 0x03, 0x18, 0xf5, 0xf8, 0x0d, 0xeb,
    0x01, 0x10, 0x09, 0x02, 0x15, 0xfb, 0xf1, 0x0b, 0xf2, 0x06, 0x08, 0x09,
    0x2f, 0x19, 0x02, 0xfe, 0xe4, 0x06, 0x1f, 0x17, 0x49, 0xf2, 0xe2, 0x02,
    0xef, 0x04, 0x26, 0x16, 0x3f, 0x08, 0xf1, 0x0a, 0xfd, 0xf9, 0x28, 0x01,
    0x15, 0x0b, 0xf9, 0x10, 0xdc, 0x02, 0x20, 0xf7, 0x16, 0xe6, 0x09, 0x03,
    0xf1, 0xf5, 0x12, 0x1c, 0xfb, 0x2a, 0x08, 0xfa, 0x0a, 0x16, 0xf6, 0x15,
    0xf0, 0x06, 0x11, 0xfd, 0x0e, 0xf9, 0xf6, 0x12, 0xed, 0xf3, 0xfd, 0x1f,
    0x0b, 0xfa, 0x08, 0x30, 0xf8, 0xff, 0x0b, 0xeb, 0x10, 0xff, 0x07, 0x22,
    0x0d, 0x07, 0x09, 0x03, 0xf6, 0xf8, 0xfc, 0x26, 0xf8, 0xee, 0x11, 0x02,
    0x03, 0x0a, 0xef, 0x38, 0xfe, 0x13, 0x1b, 0x09, 0xfe, 0x06, 0x05, 0xf3,
    0x04, 0xdf, 0xfc, 0x00, 0xe7, 0x15, 0xec, 0xf1, 0xf8, 0xfc, 0xed, 0x05,
    0x0e, 0xf3, 0x15, 0x09, 0x01, 0x0d, 0xfd, 0x00, 0x24, 0xe2, 0x31, 0x13,
    0xd5, 0x1b, 0x2b, 0xe8, 0x03, 0x08, 0x1d, 0x33, 0xdc, 0xfd, 0x24, 0xe4,
    0x20, 0xfa, 0x07, 0x33, 0x01, 0x12, 0x06, 0xf5, 0xef, 0xf7, 0xfa, 0x13,
    0x01, 0xec, 0xee, 0xe0, 0xfd, 0x0d, 0xff, 0x09, 0xf6, 0x00, 0xed, 0x07,
    0xea, 0x0e, 0xff, 0x0e, 0x26, 0xfc, 0xf0, 0xe7, 0xe7, 0xfe, 0x30, 0xff,
    0x24, 0x04, 0x06, 0xf4, 0xf5, 0xf8, 0x23, 0x0e, 0x3d, 0xf2, 0xfd, 0x04,
    0xe8, 0xfb, 0x23, 0xfe, 0x33, 0xe1, 0x01, 0xfd, 0xdc, 0xfb, 0x0e, 0xfa,
    0x22, 0xfb, 0x11, 0xfa, 0xff, 0x08, 0x21, 0x30, 0x13, 0x03, 0xf2, 0x03,
    0xf8, 0x0f, 0xec, 0x0d, 0xef, 0x0f, 0x10, 0x10, 0x0f, 0xf6, 0xf9, 0x1e,
    0xf7, 0xe5, 0x08, 0xfa, 0x09, 0xff, 0x00, 0x15, 0x02, 0x00, 0x08, 0xfe,
    0xfb, 0x0e, 0x15, 0x28, 0xfa, 0xfb, 0x13, 0x06, 0xfb, 0x05, 0xf6, 0x11,
    0xf6, 0x0b, 0x06, 0x15, 0xe1, 0x00, 0xe9, 0x0f, 0xe1, 0x1d, 0x18, 0xfd,
    0x0b, 0x0f, 0xff, 0xf2, 0xf5, 0xfd, 0x14, 0xff, 0xf4, 0xfe, 0xe2, 0xf8,
    0x14, 0x0b, 0xeb, 0x07, 0x35, 0xe2, 0xeb, 0x0b, 0x04, 0x22, 0xfe, 0x0e,
    0x1d, 0xf2, 0x24, 0x11, 0xcc, 0xec, 0x25, 0xf7, 0xff, 0xf9, 0x06, 0x29,
    0xe4, 0x07, 0x1c, 0xdb, 0xf8, 0x1d, 0xfa, 0x44, 0xf2, 0x01, 0x0f, 0xe6,
    0x11, 0x03, 0xee, 0x17, 0x06, 0xe0, 0x0c, 0xd8, 0xe9, 0xfd, 0x11, 0xfe,
    0x07, 0xdd, 0xea, 0xff, 0xde, 0xdd, 0x0a, 0x09, 0x30, 0xf2, 0x01, 0xe4,
    0xe0, 0xeb, 0x2d, 0x12, 0x2d, 0xeb, 0xfc, 0xf0, 0xe8, 0xf9, 0x1f, 0x08,
    0x3f, 0xeb, 0x0e, 0x13, 0xf9, 0x0c, 0x1c, 0x02, 0x25, 0xec, 0xf6, 0x05,
    0xf3, 0xf4, 0x18, 0x08, 0x12, 0xe9, 0xfb, 0xfd, 0xf9, 0x08, 0x13, 0x1c,
    0x08, 0xec, 0xfe, 0x02, 0xf1, 0x19, 0xf3, 0x1d, 0xf1, 0x07, 0x11, 0x12,
    0xfa, 0xf2, 0xf6, 0x0d, 0xff, 0x17, 0x0a, 0xfb, 0x1f, 0xf8, 0x11, 0x24,
    0xf6, 0xfc, 0xfe, 0x07, 0xed, 0x05, 0x1c, 0x21, 0xfe, 0xfe, 0x16, 0x0d,
    0x08, 0x0f, 0x09, 0x33, 0xf4, 0x1f, 0x14, 0x0c, 0xfe, 0xf5, 0xeb, 0x2a,
    0xee, 0xf3, 0x12, 0x19, 0xec, 0x01, 0x06, 0xf7, 0x05, 0x22, 0x0b, 0xeb,
    0xeb, 0x06, 0xe1, 0xf5, 0x0d, 0xee, 0xfb, 0x0a, 0x31, 0xff, 0xe3, 0xea,
    0x18, 0x09, 0xe3, 0x07, 0x1a, 0xf8, 0x15, 0xfc, 0xcc, 0xf2, 0x2a, 0xe5,
    0x01, 0xea, 0x10, 0x1f, 0xd9, 0x02, 0x13, 0xf6, 0x16, 0x01, 0x0e, 0x3c,
    0x02, 0x17, 0x04, 0xf1, 0xf7, 0x02, 0x07, 0x0c, 0x02, 0x1f, 0xf4, 0xe6,
    0xf0, 0xe9, 0x05, 0xf4, 0xfd, 0xe4, 0xf7, 0xe9, 0xfc, 0xef, 0x06, 0x02,
    0x26, 0xf1, 0xf1, 0xeb, 0xe9, 0xe6, 0x30, 0x1c, 0x38, 0x0f, 0x03, 0xf1,
    0x10, 0x04, 0x30, 0x19, 0x1f, 0xfb, 0xfc, 0x05, 0xe2, 0xfe, 0x18, 0xf2,
    0x1c, 0xf2, 0xf5, 0x0e, 0xf2, 0x05, 0x1d, 0x28, 0x12, 0xf0, 0xf0, 0x0f,
    0x0a, 0x03, 0x1a, 0x1a, 0xf3, 0x08, 0x13, 0xef, 0xf5, 0x1c, 0x06, 0x00,
    0xee, 0x12, 0x1d, 0x03, 0x18, 0x06, 0x0a, 0x0e, 0xf0, 0xeb, 0xfa, 0x0d,
    0x08, 0xff, 0x06, 0x24, 0x0f, 0x03, 0x0a, 0x0f, 0x0e, 0xff, 0x08, 0x33,
    0xfc, 0x00, 0x0e, 0xfb, 0xfb, 0x05, 0x07, 0x19, 0xe8, 0xe7, 0x12, 0x11,
    0x15, 0xf7, 0x0c, 0x1a, 0xf6, 0x28, 0x08, 0xeb, 0xf2, 0x25, 0xee, 0x01,
    0x03, 0xec, 0xed, 0xfa, 0xf0, 0xf2, 0xef, 0xf1, 0x02, 0x23, 0xef, 0x01,
    0x41, 0xfa, 0xf4, 0xf4, 0x15, 0xf5, 0xf5, 0xf9, 0x28, 0xde, 0x20, 0xf6,
    0xc7, 0xde, 0x21, 0xe4, 0xfe, 0xec, 0x0d, 0x2c, 0xee, 0x24, 0x10, 0xf0,
    0x1d, 0x12, 0x0e, 0x2b, 0x06, 0xf8, 0xfd, 0x01, 0x08, 0xef, 0xfd, 0x0f,
    0xeb, 0xed, 0xe1, 0xdf, 0xf1, 0xe5, 0x16, 0xe3, 0x08, 0xfc, 0xf6, 0xf6,
    0xd8, 0xf0, 0x23, 0xfc, 0x2b, 0xf5, 0xff, 0xe7, 0xf4, 0xe9, 0x29, 0x09,
    0x2b, 0x0c, 0xff, 0x08, 0x0b, 0xed, 0x29, 0x14, 0x3c, 0xf5, 0xeb, 0x18,
    0xf6, 0x10, 0x22, 0xf9, 0x17, 0x23, 0x02, 0x0c, 0xf6, 0xfa, 0x2f, 0xfe,
    0x1e, 0xeb, 0xfd, 0x03, 0xf0, 0x07, 0x1c, 0x09, 0xfa, 0xe1, 0x0d, 0x0f,
    0x18, 0x03, 0xfe, 0xf0, 0xec, 0x0b, 0x10, 0x02, 0x14, 0x06, 0xef, 0xf7,
    0xea, 0x0b, 0x05, 0xfe, 0x1f, 0x06, 0x0e, 0x07, 0x00, 0xe1, 0x01, 0x01,
    0x07, 0x05, 0x09, 0xf7, 0xef, 0x15, 0xf7, 0x12, 0x05, 0x03, 0x04, 0x1d,
    0x04, 0x10, 0x12, 0x06, 0x05, 0x00, 0x08, 0x18, 0xd6, 0xf2, 0xfa, 0x07,
    0xf8, 0x12, 0x07, 0xfd, 0xdd, 0x00, 0x04, 0xfb, 0xf8, 0x09, 0xf3, 0x09,
    0xfb, 0xf0, 0xe8, 0x09, 0x27, 0xf5, 0xf8, 0x06, 0x01, 0x02, 0x0e, 0xf6,
    0x1f, 0xfa, 0x29, 0xf8, 0xd6, 0x01, 0x22, 0xf8, 0x1d, 0xe3, 0x1a, 0x39,
    0x0a, 0x0d, 0x19, 0xf5, 0x12, 0xfb, 0x1d, 0x2a, 0x03, 0xf6, 0x0c, 0xf2,
    0xfd, 0xec, 0x18, 0x13, 0xfe, 0x1a, 0xe8, 0xdd, 0x01, 0xf8, 0x30, 0x01,
    0xf8, 0xfe, 0xe4, 0xe7, 0xff, 0xeb, 0x23, 0xfa, 0x2c, 0xf0, 0xfc, 0xe7,
    0x0a, 0xf8, 0x18, 0x10, 0x23, 0x01, 0xfa, 0xe8, 0xf1, 0xfa, 0x1d, 0x0e,
    0x17, 0xe7, 0xe4, 0xf5, 0xf9, 0x0c, 0x17, 0x0c, 0x13, 0xe8, 0xe1, 0x17,
    0x19, 0x05, 0x0b, 0x0f, 0x23, 0xed, 0xff, 0xfe, 0xe0, 0x14, 0x16, 0x00,
    0x0d, 0x1c, 0x0b, 0xf5, 0xfb, 0x18, 0xee, 0xff, 0xff, 0xf3, 0x18, 0x0c,
    0x05, 0xfa, 0xf6, 0xfe, 0xfe, 0xf8, 0xf8, 0x09, 0xef, 0xf8, 0x0e, 0xf0,
    0x00, 0xf8, 0x0c, 0xf8, 0xf6, 0x07, 0x16, 0x11, 0xf8, 0xea, 0xff, 0xff,
    0x01, 0x20, 0x07, 0x08, 0xfd, 0x1c, 0xfc, 0x06, 0xed, 0x0d, 0x08, 0x15,
    0xf0, 0x25, 0x01, 0x1b, 0x00, 0x02, 0xfe, 0x01, 0x05, 0x01, 0xfd, 0xf1,
    0xe5, 0x0c, 0xe4, 0xe1, 0xf0, 0xfa, 0xee, 0x0e, 0x35, 0xee, 0x15, 0xef,
    0x0a, 0xf9, 0x01, 0xf5, 0x1f, 0x05, 0x1f, 0x0d, 0xe1, 0xf4, 0xff, 0xf5,
    0x23, 0x02, 0x18, 0x30, 0xfc, 0xf0, 0x0d, 0x04, 0x0d, 0x06, 0x29, 0x1d,
    0xf9, 0x08, 0x06, 0xe5, 0x13, 0xfd, 0x0d, 0x26, 0xef, 0x09, 0xdc, 0xf2,
    0x05, 0xdf, 0x0c, 0xf6, 0xf3, 0xd9, 0xf8, 0x08, 0xef, 0xeb, 0x0f, 0xf9,
    0x3a, 0x03, 0xff, 0xe0, 0xf7, 0xf0, 0x15, 0x12, 0x41, 0x0b, 0xf1, 0x04,
    0x04, 0xe2, 0x0e, 0x0b, 0x2c, 0x03, 0xea, 0x02, 0xfb, 0xe7, 0x08, 0xe9,
    0x22, 0xf3, 0xf2, 0x1c, 0xfa, 0xf3, 0x11, 0x04, 0x1f, 0xf5, 0x02, 0x0f,
    0x1a, 0x1f, 0x24, 0x0b, 0x06, 0x1f, 0xf3, 0x06, 0x00, 0x02, 0xe8, 0xf6,
    0xf4, 0xe8, 0x07, 0x2e, 0xfb, 0xf8, 0x10, 0x09, 0xf0, 0x0e, 0xff, 0xfe,
    0x1c, 0x14, 0x17, 0x06, 0xe2, 0xf1, 0xfa, 0x01, 0x11, 0x13, 0x12, 0x29,
    0xf1, 0x0f, 0x1f, 0xfa, 0xfd, 0xfd, 0x02, 0x07, 0x0e, 0xfb, 0x0e, 0x04,
    0x01, 0x01, 0xed, 0xfe, 0xde, 0xfd, 0x08, 0xef, 0xf6, 0x0a, 0xff, 0x0f,
    0xe7, 0xf2, 0x0f, 0x02, 0xea, 0x10, 0xf9, 0xec, 0xfd, 0x09, 0xea, 0x1f,
    0x46, 0xdd, 0xe2, 0xf7, 0x08, 0xf5, 0xf7, 0xe9, 0x33, 0xfb, 0x2f, 0xf6,
    0xb5, 0x1d, 0x15, 0xeb, 0x11, 0xf7, 0x2a, 0x2e, 0x08, 0x1d, 0xf4, 0xfb,
    0x15, 0xfa, 0x22, 0x34, 0xff, 0x06, 0xf6, 0xfd, 0xfa, 0xf9, 0x03, 0xf5,
    0xf4, 0xf4, 0xd5, 0xea, 0x01, 0x08, 0x22, 0xf1, 0xf2, 0x06, 0xd1, 0xe5,
    0x0c, 0xef, 0x12, 0x03, 0x08, 0x02, 0xf7, 0x05, 0x1b, 0x07, 0x39, 0x34,
    0x21, 0xe2, 0xe3, 0x0b, 0x0c, 0xf6, 0x29, 0xf7, 0x24, 0x0a, 0xfc, 0xff,
    0x1a, 0xfd, 0x05, 0xff, 0xff, 0x0e, 0x0a, 0x1a, 0x09, 0xfb, 0x15, 0x04,
    0x03, 0xf7, 0xfe, 0x00, 0xfc, 0xfb, 0x11, 0xfa, 0x1d, 0x0e, 0x06, 0xed,
    0xfc, 0x23, 0xd8, 0xf2, 0x04, 0xe5, 0x0f, 0x16, 0x29, 0xfe, 0xf5, 0xec,
    0xe2, 0x0e, 0xeb, 0x09, 0x1d, 0x11, 0x05, 0x11, 0xe4, 0x29, 0x12, 0x02,
    0x12, 0x19, 0x0e, 0x1a, 0xee, 0xf9, 0x05, 0x09, 0xf5, 0xfd, 0x05, 0x04,
    0xe4, 0xf1, 0x17, 0x01, 0xf2, 0xfe, 0x0b, 0xf4, 0x0d, 0x04, 0x06, 0xfe,
    0xff, 0xec, 0xe9, 0x00, 0xff, 0x03, 0x03, 0xfd, 0xf1, 0x15, 0xfc, 0xf3,
    0xff, 0xfe, 0x09, 0xee, 0x3c, 0x01, 0xec, 0x02, 0xf0, 0xf6, 0x20, 0xeb,
    0x16, 0x07, 0x32, 0xf3, 0xce, 0xf0, 0x02, 0xd4, 0x11, 0xe6, 0x28, 0x0e,
    0xe3, 0x21, 0xee, 0xce, 0x1e, 0xd9, 0x23, 0x26, 0x06, 0xfa, 0xf9, 0xf1,
    0x01, 0xe6, 0x0b, 0x07, 0xdc, 0x21, 0xbc, 0xe3, 0xef, 0xf8, 0x12, 0xfc,
    0xe6, 0xfe, 0xf5, 0xd4, 0x15, 0x0a, 0x00, 0x13, 0xfc, 0xec, 0xf3, 0xd6,
    0x1a, 0xe3, 0x21, 0x36, 0x2a, 0x03, 0xe9, 0xe3, 0xff, 0x00, 0x13, 0x1c,
    0x0e, 0x20, 0xe5, 0xf5, 0x24, 0x0b, 0x20, 0x14, 0x13, 0xf8, 0x04, 0x1b,
    0x2f, 0x0a, 0x15, 0x00, 0xf4, 0x1a, 0x11, 0x0d, 0x03, 0x18, 0x0f, 0x18,
    0x04, 0x1f, 0xfb, 0xf2, 0x1f, 0x15, 0x03, 0xfb, 0x0b, 0x17, 0xfb, 0x0b,
    0x1b, 0x1f, 0xf4, 0x07, 0xf9, 0xf9, 0xf8, 0xf4, 0x14, 0x0f, 0xf6, 0xfe,
    0xdd, 0x0b, 0xff, 0x01, 0x18, 0x04, 0x1b, 0x0a, 0xed, 0xe7, 0xf9, 0x16,
    0x02, 0x01, 0x00, 0xf7, 0xf1, 0x07, 0xf0, 0x06, 0xf8, 0x0b, 0x02, 0xf3,
    0xff, 0x20, 0xfd, 0x01, 0x04, 0xf5, 0xd9, 0xf4, 0xf4, 0xf2, 0xe8, 0xff,
    0x04, 0x00, 0xf0, 0xe2, 0xfe, 0xed, 0x1b, 0xef, 0x20, 0xfa, 0xfb, 0xf4,
    0x02, 0x18, 0x07, 0xfb, 0xef, 0xe4, 0x08, 0x0d, 0xe1, 0x0e, 0x25, 0xc6,
    0xfd, 0x0c, 0x1c, 0x0b, 0xf0, 0x01, 0x1c, 0xd4, 0x11, 0xf5, 0x1b, 0x09,
    0xfb, 0xda, 0x13, 0xe3, 0xf9, 0x10, 0x14, 0xf0, 0xf0, 0xfd, 0x1f, 0xcf,
    0xf4, 0xe4, 0xfb, 0x0e, 0x0a, 0x11, 0xed, 0xdc, 0xfc, 0xe6, 0xf7, 0xfc,
    0x13, 0xe1, 0x0b, 0xe4, 0x04, 0x11, 0xee, 0x21, 0x14, 0xe1, 0x07, 0xe4,
    0xfb, 0x08, 0x03, 0x2b, 0x27, 0xf6, 0x0d, 0x02, 0x1b, 0x09, 0x09, 0xf8,
    0x14, 0x19, 0x0f, 0x0b, 0x01, 0x10, 0x09, 0x12, 0x03, 0xf5, 0x18, 0xf3,
    0xfb, 0xf5, 0x02, 0x0e, 0x0d, 0x00, 0x07, 0xfc, 0x18, 0x25, 0x0b, 0xf0,
    0xf9, 0xe6, 0x08, 0x01, 0x24, 0x14, 0xfa, 0xed, 0xe5, 0x1f, 0x09, 0xfe,
    0x08, 0xee, 0x1a, 0x1a, 0x05, 0x00, 0xff, 0x0c, 0xfe, 0xf9, 0x11, 0x11,
    0xea, 0xfe, 0x08, 0xf9, 0xf0, 0xe4, 0x01, 0x0d, 0xf1, 0x00, 0x0b, 0xea,
    0x19, 0xea, 0xf3, 0xf8, 0x08, 0x12, 0x1c, 0x1f, 0xfb, 0xef, 0xf0, 0xf2,
    0x14, 0xe1, 0x03, 0xfa, 0xf9, 0xda, 0xe9, 0xfc, 0xf3, 0xff, 0x12, 0x04,
    0xf7, 0xfc, 0x17, 0x0f, 0xfc, 0x29, 0x03, 0xe5, 0xf2, 0xee, 0x1e, 0xfa,
    0x04, 0xed, 0x25, 0xf4, 0xe1, 0x15, 0x10, 0x1e, 0xef, 0x1c, 0x04, 0xde,
    0xe5, 0x08, 0x21, 0xfd, 0xfd, 0xea, 0x03, 0xca, 0xda, 0x26, 0x00, 0x0a,
    0xfd, 0x05, 0xf0, 0xd4, 0xe1, 0x1a, 0xe4, 0xf5, 0x07, 0xe7, 0xfa, 0xdf,
    0xd4, 0x03, 0xf0, 0x10, 0x15, 0x0c, 0xf4, 0xed, 0xe3, 0xfb, 0x0f, 0x1e,
    0x16, 0x09, 0x00, 0xec, 0xea, 0x13, 0x16, 0x0b, 0x01, 0xfb, 0xff, 0x00,
    0xfb, 0x07, 0x13, 0x08, 0xf4, 0xe4, 0x12, 0x00, 0xfb, 0xfa, 0xfc, 0x08,
    0xeb, 0x19, 0x02, 0x1c, 0xe8, 0x26, 0xf3, 0x10, 0x09, 0x0f, 0x19, 0x02,
    0xfb, 0xec, 0xf7, 0xe2, 0xfb, 0xfa, 0x11, 0xf3, 0x0b, 0x08, 0xff, 0xd9,
    0xf8, 0x12, 0x18, 0x06, 0x07, 0x22, 0xff, 0x19, 0xf5, 0x0b, 0x0a, 0x13,
    0xf2, 0xfa, 0x02, 0x21, 0xeb, 0x11, 0x17, 0x17, 0xec, 0xe1, 0x0e, 0xf7,
    0xe8, 0xd8, 0x0e, 0x01, 0xf1, 0xed, 0xed, 0xf0, 0x09, 0xf7, 0xe7, 0xfd,
    0xf0, 0xf9, 0xdb, 0xee, 0xdc, 0xfb, 0xf8, 0x0a, 0xf5, 0x0b, 0xd4, 0xd7,
    0x08, 0x06, 0x18, 0x06, 0x0c, 0x13, 0xfd, 0x09, 0x13, 0x26, 0x12, 0xf4,
    0xef, 0x00, 0xf5, 0x28, 0x18, 0xfe, 0x04, 0x0e, 0x21, 0x1a, 0x0a, 0x1e,
    0x09, 0xf0, 0x0d, 0x0f, 0xec, 0xf3, 0x17, 0x22, 0x00, 0xec, 0x0e, 0x01,
    0xe9, 0x08, 0x09, 0xf2, 0xf2, 0x08, 0xf0, 0x0b, 0xd9, 0x09, 0x14, 0xf5,
    0xf6, 0x04, 0x19, 0xf4, 0x11, 0xe9, 0xf2, 0x0d, 0x20, 0x17, 0x0a, 0x05,
    0x0c, 0x04, 0x01, 0xfd, 0xf4, 0xfb, 0x1b, 0x0c, 0xf2, 0x0b, 0xff, 0xfe,
    0x01, 0xd8, 0xfa, 0x0e, 0xf5, 0x14, 0xf9, 0x01, 0x04, 0xf8, 0xfa, 0x02,
    0xe8, 0xf9, 0xf9, 0xea, 0xf1, 0x07, 0xff, 0x1e, 0x01, 0x0b, 0xf7, 0x0a,
    0xf7, 0x0c, 0xfd, 0xec, 0xf3, 0x05, 0xf8, 0xda, 0x0b, 0x15, 0xf6, 0xee,
    0xf9, 0x10, 0xfa, 0xfe, 0x08, 0xf0, 0xe6, 0xec, 0x05, 0xff, 0x15, 0x19,
    0x1f, 0x11, 0xfc, 0x09, 0x08, 0x01, 0x06, 0xfe, 0x04, 0x08, 0xfb, 0xfb,
    0x08, 0xf4, 0xf6, 0x28, 0x10, 0xf9, 0x28, 0x0b, 0xf8, 0x0d, 0x01, 0x00,
    0xff, 0x02, 0x05, 0x08, 0xea, 0xe9, 0xf4, 0xf6, 0x01, 0xea, 0xdf, 0x1f,
    0xfe, 0x0a, 0xf9, 0xf7, 0x0c, 0x1b, 0x06, 0xed, 0xf6, 0xf2, 0x03, 0x03,
    0xfd, 0x04, 0xf5, 0x10, 0x0a, 0x0b, 0xf4, 0xf8, 0xf1, 0xe7, 0x05, 0xfe,
    0xe7, 0x0b, 0xf1, 0xec, 0xf4, 0xec, 0x06, 0xee, 0xde, 0x05, 0x1b, 0xfe,
    0x13, 0xf3, 0xd9, 0xea, 0x04, 0x10, 0x05, 0xed, 0x15, 0x02, 0x0b, 0x10,
    0xfa, 0x02, 0x05, 0x0b, 0x02, 0x07, 0xfc, 0xf5, 0x15, 0x14, 0x05, 0xf7,
    0x0c, 0xfe, 0xf6, 0xf4, 0xfa, 0x06, 0xfc, 0x13, 0xdc, 0xe4, 0x09, 0xfa,
    0x02, 0x23, 0xec, 0x06, 0x11, 0x13, 0xf8, 0xfa, 0x27, 0x28, 0x0b, 0x23,
    0xec, 0xf1, 0x09, 0x17, 0x0f, 0x13, 0xff, 0xf2, 0xfc, 0x0a, 0xf5, 0x0d,
    0x03, 0x26, 0x01, 0x0f, 0xfe, 0xf1, 0xfb, 0xe6, 0xf0, 0x02, 0xf2, 0xff,
    0x02, 0x11, 0xff, 0xfd, 0x1c, 0x02, 0x0b, 0xf6, 0x14, 0x0c, 0x0b, 0x21,
    0x28, 0xf0, 0x11, 0x05, 0x06, 0xed, 0xf9, 0x0a, 0xf2, 0xef, 0xf8, 0xf1,
    0xfe, 0x0d, 0xf9, 0xf7, 0xea, 0x00, 0x08, 0xdb, 0x02, 0x0f, 0xfe, 0x04,
    0xef, 0x20, 0x16, 0x01, 0xe8, 0xed, 0xe4, 0x22, 0xf6, 0x19, 0x00, 0x04,
    0x01, 0x13, 0xeb, 0x0d, 0xec, 0x01, 0x08, 0x05, 0x0c, 0x0e, 0xfe, 0x02,
    0x12, 0xf7, 0x27, 0xf9, 0xfd, 0x18, 0xfe, 0x24, 0xf7, 0x13, 0xed, 0x1e,
    0x09, 0xff, 0xd8, 0xf4, 0x12, 0xf8, 0x04, 0x0c, 0x1c, 0x11, 0xfd, 0x17,
    0x1d, 0x01, 0x13, 0xee, 0x11, 0xf3, 0xf8, 0x06, 0xf6, 0x16, 0xfe, 0x15,
    0x16, 0xdc, 0x1f, 0x00, 0x25, 0xee, 0xff, 0xf7, 0xf6, 0x02, 0xdd, 0x15,
    0xf1, 0x14, 0x08, 0xe8, 0xe5, 0x21, 0xea, 0xf0, 0x1a, 0x07, 0xea, 0x08,
    0xea, 0xe4, 0x1e, 0x00, 0x13, 0x17, 0xec, 0x11, 0xd6, 0x11, 0x18, 0x17,
    0x04, 0x15, 0x03, 0x3a, 0xd6, 0x02, 0x07, 0x04, 0xe6, 0xe5, 0xfe, 0x0e,
    0xff, 0xed, 0xfc, 0xfb, 0xff, 0x1c, 0x06, 0x0a, 0xfb, 0xf9, 0xea, 0x1a,
    0x21, 0xf5, 0x04, 0x06, 0x0a, 0xe3, 0x16, 0xea, 0x04, 0xe2, 0xf9, 0xf9,
    0xe6, 0xfb, 0x0f, 0xfc, 0x06, 0xfb, 0x10, 0x07, 0x07, 0x13, 0x07, 0xfc,
    0x16, 0xef, 0x07, 0xdc, 0x12, 0x1f, 0x08, 0xf4, 0xe9, 0x14, 0x06, 0xf7,
    0xf1, 0x0c, 0x01, 0x0c, 0xe6, 0x04, 0xf3, 0xf2, 0xe5, 0xf3, 0xef, 0x1d,
    0xf6, 0x20, 0x07, 0xfe, 0xf4, 0x05, 0xee, 0x10, 0xfd, 0x0e, 0x0b, 0x02,
    0x0d, 0xd8, 0x07, 0xfb, 0x26, 0x0a, 0x1c, 0x21, 0x06, 0x1f, 0xf4, 0x06,
    0x37, 0x18, 0xfa, 0x16, 0x1e, 0x24, 0xfb, 0xf0, 0x12, 0xf9, 0x02, 0x09,
    0x17, 0x16, 0xf3, 0xf9, 0x17, 0xf2, 0x02, 0x0a, 0x2d, 0xe7, 0xe3, 0x25,
    0xf0, 0xf9, 0x0f, 0xdd, 0x15, 0xe6, 0x04, 0xfc, 0xf1, 0x17, 0x0a, 0xea,
    0x24, 0x07, 0xf1, 0x11, 0x13, 0x29, 0xf4, 0xc5, 0xfb, 0x07, 0xef, 0x13,
    0x0b, 0xe1, 0xf1, 0xeb, 0xf8, 0x1b, 0x09, 0x08, 0x1f, 0x15, 0xf2, 0x05,
    0x02, 0xdd, 0x09, 0x0f, 0x16, 0x10, 0x01, 0x30, 0xf2, 0xe0, 0x27, 0xfe,
    0xf1, 0x0e, 0x0e, 0x07, 0xe6, 0x07, 0x0b, 0x18, 0xfe, 0x0f, 0x01, 0x07,
    0xf4, 0x07, 0x10, 0xe7, 0xfb, 0xf3, 0xf7, 0x0b, 0xf9, 0x15, 0x18, 0x25,
    0x0c, 0x14, 0x02, 0x08, 0x0a, 0x0f, 0x10, 0xec, 0xee, 0x1a, 0x03, 0x14,
    0x0f, 0xfa, 0x25, 0xff, 0x18, 0x0d, 0x0b, 0xea, 0x1f, 0x28, 0x10, 0x0c,
    0xe7, 0xee, 0xf7, 0xfa, 0x03, 0x15, 0x0c, 0x1d, 0x01, 0x00, 0x12, 0xee,
    0x01, 0xf1, 0xf8, 0x0b, 0xf3, 0xfd, 0x04, 0xf8, 0x02, 0x1e, 0x0e, 0xf3,
    0x02, 0x10, 0xfd, 0x07, 0x0b, 0x09, 0x03, 0x10, 0x3e, 0x08, 0x0e, 0x0c,
    0xf4, 0xe7, 0xfd, 0x1c, 0x27, 0x1a, 0xed, 0xe1, 0x08, 0xdc, 0xd9, 0xf1,
    0x1e, 0x07, 0x12, 0xf1, 0x10, 0xfb, 0xc8, 0x08, 0x0f, 0x03, 0x1d, 0xdc,
    0x23, 0x04, 0xf9, 0x0a, 0xff, 0x08, 0x0e, 0xc9, 0x39, 0x0a, 0x01, 0x07,
    0xec, 0xe0, 0x05, 0xe8, 0x14, 0xd8, 0xe1, 0xfa, 0xd6, 0xf8, 0xed, 0xdb,
    0xff, 0x1d, 0xf5, 0x17, 0x0f, 0x1c, 0xdc, 0xed, 0xff, 0xff, 0x04, 0x13,
    0xf5, 0xe7, 0xd2, 0x12, 0xdb, 0xe1, 0x13, 0x11, 0x23, 0x0e, 0xf9, 0x31,
    0xdc, 0xef, 0x07, 0x0a, 0x20, 0xf2, 0xf9, 0x13, 0xff, 0x1c, 0x2a, 0xdf,
    0xdb, 0xe7, 0x11, 0xf2, 0xfd, 0xfb, 0x28, 0x00, 0x15, 0x03, 0x02, 0x20,
    0x07, 0xf7, 0x19, 0x13, 0x13, 0xf6, 0x09, 0xfe, 0xfd, 0x20, 0x14, 0xf5,
    0xf5, 0xfc, 0x14, 0x0e, 0x17, 0xfe, 0x15, 0x04, 0xf9, 0xf6, 0x1d, 0xf6,
    0x1b, 0xe4, 0xee, 0xfd, 0x00, 0xe9, 0xee, 0xce, 0x0f, 0x20, 0x05, 0x02,
    0x0d, 0x06, 0x05, 0xf8, 0xef, 0xdf, 0x16, 0x17, 0xe6, 0xf1, 0x10, 0xf3,
    0x06, 0x04, 0xdb, 0xfb, 0xe7, 0xf8, 0x02, 0x11, 0xff, 0x0d, 0x0a, 0xfa,
    0x27, 0x0a, 0xfc, 0xe8, 0x11, 0x17, 0xf0, 0x0d, 0x0d, 0xee, 0xdf, 0xdd,
    0xf1, 0x15, 0xd6, 0xf7, 0x00, 0xef, 0x2e, 0xe6, 0x24, 0xfd, 0xd5, 0x04,
    0xf0, 0x08, 0x08, 0xed, 0x22, 0x07, 0xe1, 0x09, 0xd0, 0x0b, 0x18, 0xe6,
    0x3f, 0x0a, 0xe5, 0xe2, 0xf9, 0x08, 0x02, 0xd6, 0x13, 0x15, 0xbd, 0x00,
    0x0e, 0xf8, 0xe2, 0xca, 0xec, 0x0e, 0xe6, 0xef, 0x15, 0x11, 0xcb, 0xdf,
    0xf9, 0x03, 0x22, 0x10, 0xfb, 0xf9, 0xe5, 0x08, 0xe1, 0x11, 0x10, 0xfc,
    0xfa, 0x00, 0xf8, 0x30, 0xe5, 0x08, 0x14, 0xe8, 0x12, 0xe2, 0x04, 0x19,
    0x0b, 0xfa, 0x33, 0xf3, 0xec, 0xfe, 0xf8, 0x25, 0xf8, 0x21, 0x28, 0xef,
    0x00, 0xde, 0xff, 0x2b, 0x03, 0xfc, 0x10, 0x0c, 0xcf, 0xfd, 0x19, 0x0a,
    0x0c, 0xf2, 0xf7, 0x0c, 0xfd, 0x02, 0x1c, 0xdf, 0x26, 0x0d, 0xf0, 0x0b,
    0xce, 0x15, 0xfb, 0xec, 0x27, 0xf6, 0xf9, 0xe5, 0xe2, 0xfb, 0xfd, 0xd8,
    0x28, 0xec, 0xe9, 0xf2, 0xca, 0x09, 0x02, 0x06, 0x0c, 0xfa, 0x05, 0x01,
    0xd5, 0x0a, 0x02, 0xfb, 0x04, 0x17, 0xdd, 0xfe, 0xeb, 0xf1, 0x09, 0x10,
    0x12, 0xff, 0x00, 0xe0, 0x26, 0xf7, 0xed, 0xf4, 0x00, 0xf2, 0xfa, 0x07,
    0x02, 0xf5, 0x06, 0xe8, 0x03, 0xfd, 0xdc, 0xf2, 0xc2, 0xff, 0x0b, 0xd6,
    0x25, 0x04, 0xe9, 0xf0, 0xd9, 0x08, 0x09, 0xc5, 0x23, 0x12, 0xf6, 0x13,
    0x11, 0xf3, 0x18, 0xf0, 0x34, 0xfe, 0xfe, 0xed, 0xea, 0x02, 0x17, 0xdc,
    0x1b, 0x1b, 0xea, 0xfe, 0xea, 0xfe, 0xf2, 0xc4, 0xfd, 0x04, 0xe9, 0x0d,
    0x0d, 0x09, 0xca, 0xd4, 0xe1, 0x04, 0x1e, 0xff, 0x0f, 0xef, 0xd6, 0x0f,
    0xd5, 0xf8, 0x26, 0xd6, 0x33, 0xe8, 0xf5, 0x3b, 0xf1, 0xe8, 0x39, 0xe8,
    0x08, 0xe5, 0x01, 0x02, 0x04, 0xf6, 0x19, 0x0a, 0xd0, 0xeb, 0x0b, 0x15,
    0xf7, 0x0e, 0x23, 0xf6, 0xf4, 0xd8, 0xf4, 0x17, 0x23, 0x25, 0x14, 0x01,
    0xd7, 0xfd, 0xf9, 0x1f, 0x1b, 0x11, 0x0a, 0x18, 0xf5, 0xf5, 0x0f, 0xe0,
    0x2e, 0x01, 0xe5, 0xdb, 0xe2, 0xf2, 0x14, 0xfa, 0x2a, 0x00, 0xe2, 0xea,
    0xfd, 0x0e, 0xfc, 0xc1, 0x35, 0x08, 0xf6, 0xf9, 0xec, 0x00, 0x06, 0x00,
    0x0b, 0xf6, 0x01, 0xfe, 0xea, 0x0b, 0x08, 0x05, 0xe4, 0xea, 0xd7, 0xfd,
    0xee, 0xf3, 0x0c, 0x0c, 0x0d, 0x02, 0xfd, 0xee, 0x17, 0x10, 0x13, 0xfd,
    0x07, 0x03, 0xf8, 0x0c, 0xd4, 0xed, 0xfe, 0x07, 0xf4, 0xee, 0xf4, 0x03,
    0xc2, 0x18, 0x2c, 0xd1, 0x33, 0xd8, 0xdb, 0xfa, 0xed, 0x10, 0x1c, 0xe3,
    0x37, 0x0a, 0xea, 0xfe, 0xf6, 0xef, 0x20, 0xed, 0x32, 0xf7, 0xf5, 0xf3,
    0xca, 0xfd, 0x0a, 0xcf, 0x0d, 0x10, 0xde, 0x07, 0x18, 0x10, 0xf0, 0xd6,
    0x0c, 0x04, 0xeb, 0x1a, 0xf9, 0x08, 0xc4, 0xcb, 0xe4, 0x0b, 0x19, 0xfc,
    0x29, 0xf6, 0xec, 0x07, 0xf3, 0xed, 0x2b, 0xe9, 0xfa, 0x02, 0xec, 0x2b,
    0xf0, 0xf2, 0x2d, 0xe8, 0xed, 0x00, 0x12, 0x13, 0xed, 0x1a, 0x3d, 0xf0,
    0x05, 0x04, 0xfc, 0x13, 0x10, 0x01, 0x40, 0xf2, 0x06, 0x02, 0xf9, 0x22,
    0x24, 0xff, 0x18, 0x00, 0xeb, 0xe8, 0x14, 0xf9, 0x25, 0xe0, 0xff, 0x03,
    0xe5, 0xfd, 0x08, 0xea, 0x2e, 0x0b, 0x05, 0xe7, 0xde, 0xe4, 0xf5, 0xea,
    0x3a, 0xf4, 0xf4, 0xe7, 0xed, 0xec, 0xf8, 0xee, 0x30, 0x0a, 0xdb, 0x05,
    0xf7, 0x16, 0xff, 0xf7, 0xfa, 0x1f, 0xef, 0xe4, 0xce, 0xf8, 0x13, 0x04,
    0xf9, 0x01, 0xe1, 0x03, 0xf9, 0xf9, 0x08, 0x04, 0xfa, 0xe4, 0xe7, 0xf7,
    0x28, 0xfd, 0xfd, 0x00, 0xfc, 0xfb, 0xef, 0x0a, 0xec, 0x0c, 0x0a, 0xd2,
    0x05, 0xfb, 0xcd, 0xfb, 0x9d, 0xea, 0x1c, 0xe5, 0x25, 0xe8, 0xea, 0x0b,
    0xf0, 0xf3, 0x0d, 0xab, 0x49, 0x0e, 0xeb, 0x00, 0xe2, 0x03, 0x29, 0xe0,
    0x3d, 0x06, 0xf7, 0xf8, 0xcf, 0x0c, 0x1a, 0xd6, 0x1f, 0xef, 0xfd, 0xff,
    0xef, 0x0c, 0xdb, 0xe0, 0x20, 0x06, 0xdf, 0x1a, 0xe7, 0xfc, 0xb2, 0xd1,
    0xdf, 0x13, 0x07, 0x1f, 0x0c, 0xf7, 0xde, 0x0a, 0xdb, 0xdf, 0x1a, 0xf5,
    0x29, 0x0d, 0xeb, 0x2c, 0xcf, 0x0e, 0x26, 0xfe, 0xef, 0x04, 0xf5, 0x14,
    0x09, 0x13, 0x34, 0xff, 0xfe, 0x0e, 0x06, 0x0e, 0x10, 0xf9, 0x2a, 0x0b,
    0xe6, 0xfe, 0xf1, 0x1a, 0x36, 0x29, 0x29, 0x05, 0x05, 0xd8, 0x14, 0x12,
    0x26, 0x0b, 0x18, 0xff, 0xd7, 0xdf, 0x0f, 0xed, 0x31, 0xf7, 0xfc, 0xec,
    0x0b, 0xef, 0x0c, 0xd2, 0x30, 0xf9, 0x04, 0xfe, 0xef, 0xe4, 0xfb, 0xd1,
    0x32, 0xe5, 0xee, 0xf0, 0x0c, 0xe6, 0x13, 0xed, 0x1e, 0x0b, 0xe4, 0xe0,
    0xfa, 0xf4, 0x14, 0xf4, 0x18, 0xf7, 0xd9, 0xf6, 0xed, 0xea, 0xfc, 0x06,
    0xfc, 0xf5, 0xed, 0xeb, 0x05, 0x03, 0x1b, 0x0b, 0xff, 0x0b, 0xef, 0x01,
    0xf1, 0x16, 0x05, 0x00, 0xee, 0x0a, 0xdb, 0x10, 0xb4, 0x14, 0x0f, 0xe1,
    0x1c, 0xfd, 0xf0, 0xf8, 0xc3, 0x11, 0x17, 0xba, 0x47, 0x15, 0xe6, 0x01,
    0xea, 0xf1, 0x0c, 0x08, 0x4a, 0x15, 0xf0, 0xf7, 0xea, 0x00, 0xf5, 0xd4,
    0xf1, 0xff, 0xe0, 0x0c, 0xf4, 0x17, 0xd8, 0xea, 0x03, 0xff, 0xd5, 0x18,
    0xfb, 0x07, 0xc7, 0xc9, 0xdd, 0xf3, 0x15, 0x0d, 0x22, 0xea, 0xdb, 0x0a,
    0xd6, 0x09, 0x1d, 0xe5, 0x2d, 0x04, 0xfc, 0x35, 0xc6, 0x0e, 0x33, 0xf1,
    0xd7, 0xea, 0x01, 0x1b, 0x0e, 0x01, 0x2a, 0xff, 0xef, 0xf1, 0xf7, 0x0f,
    0xff, 0x00, 0x3b, 0xe8, 0x0a, 0xff, 0xf4, 0x0d, 0x1f, 0x04, 0x17, 0xf7,
    0xdf, 0xec, 0x12, 0x26, 0x36, 0x07, 0x0c, 0x06, 0xe7, 0xd6, 0x13, 0xe3,
    0x30, 0x09, 0x00, 0xf5, 0xe0, 0xf3, 0x11, 0xe2, 0x38, 0x0d, 0xf6, 0x05,
    0xec, 0x05, 0x00, 0xe5, 0x24, 0xef, 0xfe, 0xf8, 0x00, 0xd8, 0x18, 0xf1,
    0x26, 0x0b, 0xf2, 0xfc, 0xe0, 0xe4, 0x06, 0x0b, 0x1a, 0x05, 0xc6, 0xf6,
    0xe8, 0xde, 0xfe, 0x0c, 0x03, 0x09, 0xfe, 0xe2, 0x18, 0x1b, 0xfb, 0xf7,
    0x06, 0xf1, 0xfe, 0xf6, 0xef, 0x1b, 0x07, 0x0d, 0x01, 0x0a, 0xed, 0xf0,
    0xad, 0x1a, 0x17, 0xd6, 0x37, 0xfd, 0xd8, 0xec, 0xca, 0xf1, 0x15, 0xc4,
    0x33, 0xf1, 0xed, 0xf0, 0xe9, 0x15, 0x0d, 0xf2, 0x36, 0xde, 0xfd, 0x0e,
    0xfb, 0x10, 0x0f, 0xf6, 0xf9, 0x0c, 0xea, 0xf0, 0xe5, 0x0b, 0xee, 0xc1,
    0x10, 0xf4, 0xe8, 0x1f, 0xee, 0x00, 0xd0, 0xe4, 0xe7, 0x13, 0x07, 0x27,
    0x12, 0xea, 0xea, 0x0f, 0xea, 0xf4, 0x14, 0xee, 0xfe, 0x09, 0xfb, 0x31,
    0xdb, 0x1b, 0x1c, 0xe7, 0xef, 0xf5, 0xf7, 0x1a, 0x06, 0x01, 0x2c, 0xed,
    0xfb, 0x04, 0xfa, 0x07, 0x19, 0xec, 0x2b, 0x0d, 0xfc, 0xd8, 0xfc, 0x0f,
    0x1f, 0xfc, 0x2d, 0xf3, 0xc9, 0xda, 0x0a, 0xfe, 0x29, 0x00, 0xfa, 0x09,
    0xe8, 0xf6, 0x21, 0xf3, 0x4a, 0x1a, 0xf8, 0x00, 0xe7, 0xf0, 0x21, 0x01,
    0x22, 0xf3, 0x00, 0xe9, 0x06, 0xe3, 0x15, 0xd7, 0x3d, 0x0c, 0x07, 0xf1,
    0xf3, 0xec, 0x17, 0xdf, 0x29, 0x1b, 0xfd, 0xfe, 0xeb, 0xed, 0x17, 0xf6,
    0x23, 0x0a, 0xea, 0xee, 0xf9, 0xf3, 0x0f, 0x0c, 0xf8, 0xf5, 0xed, 0xe8,
    0x1c, 0x14, 0x07, 0x17, 0x0b, 0x0d, 0xed, 0xf7, 0xed, 0x10, 0x07, 0xd5,
    0xf2, 0x09, 0xd6, 0xf7, 0xb5, 0xf6, 0x19, 0xc9, 0x25, 0x15, 0xe8, 0xf5,
    0xc4, 0xf9, 0x2a, 0xb0, 0x39, 0x0e, 0x02, 0x11, 0xf0, 0xf7, 0x1d, 0xeb,
    0x39, 0x10, 0x02, 0x15, 0xe0, 0x08, 0x01, 0xee, 0x1c, 0x1e, 0x08, 0x04,
    0xf2, 0x02, 0xe8, 0xda, 0xfa, 0xfb, 0xe0, 0xfe, 0x05, 0x02, 0xd3, 0xca,
    0xf4, 0xec, 0x10, 0x16, 0x05, 0x0d, 0xd7, 0x09, 0xdc, 0xf6, 0x1e, 0xf8,
    0x10, 0xed, 0xf7, 0x27, 0xf5, 0x08, 0x28, 0xee, 0xec, 0xe0, 0xf8, 0x17,
    0xfb, 0x23, 0x2e, 0xf1, 0xfa, 0xf5, 0xfc, 0x1a, 0x10, 0xf7, 0x32, 0xfb,
    0xfb, 0xe8, 0xf1, 0x03, 0x24, 0xeb, 0x25, 0xf9, 0xca, 0xf1, 0xfe, 0x01,
    0x2e, 0x07, 0x18, 0x03, 0xe5, 0xea, 0x10, 0xfa, 0x3b, 0x07, 0x0f, 0x11,
    0x04, 0xf7, 0x1d, 0xf1, 0x24, 0xd9, 0x08, 0xef, 0x02, 0xdd, 0x07, 0xc8,
    0x2c, 0x0d, 0x06, 0xec, 0x17, 0xda, 0x21, 0xdf, 0x34, 0xd9, 0xfb, 0xf2,
    0xf4, 0xec, 0x0e, 0x0a, 0x0f, 0x0f, 0xdb, 0xf0, 0xfb, 0xe6, 0x0f, 0x00,
    0x04, 0xf9, 0x01, 0x05, 0x05, 0xfe, 0x08, 0xf3, 0x0e, 0xf2, 0xfb, 0x01,
    0xfd, 0x18, 0x1d, 0xf6, 0xee, 0x06, 0xcf, 0xfc, 0xae, 0x27, 0x21, 0xd2,
    0x33, 0x03, 0xe0, 0xe0, 0xc9, 0xfb, 0x3a, 0xbd, 0x4d, 0x04, 0xe8, 0xf5,
    0xe6, 0xeb, 0x19, 0xf2, 0x4b, 0x1d, 0xfc, 0xf7, 0xd9, 0xff, 0xfe, 0xea,
    0x0f, 0x04, 0x0e, 0x00, 0xed, 0x19, 0xe9, 0xe9, 0xff, 0x11, 0xef, 0x14,
    0x01, 0x17, 0xbc, 0xb5, 0xef, 0x0c, 0x22, 0x27, 0x0f, 0x01, 0xd4, 0x03,
    0xce, 0x01, 0x25, 0xff, 0xf9, 0xf0, 0x0a, 0x1c, 0xe5, 0x0f, 0x1c, 0xee,
    0xf4, 0xf1, 0xf4, 0x0c, 0x00, 0x08, 0x1c, 0xf4, 0xd5, 0xf1, 0xfc, 0x1f,
    0x11, 0x00, 0x18, 0x03, 0xf7, 0xe4, 0xff, 0x07, 0x09, 0x1a, 0x18, 0xff,
    0xea, 0xec, 0xfd, 0x13, 0x2b, 0xf8, 0x0c, 0xfa, 0xdf, 0xf6, 0x11, 0xda,
    0x2a, 0xdc, 0xfc, 0xff, 0xff, 0xec, 0x12, 0xe1, 0x37, 0xfd, 0xeb, 0xfe,
    0xea, 0xd1, 0x12, 0xfa, 0x28, 0x1a, 0x0d, 0xf0, 0xf7, 0xe0, 0x0c, 0xeb,
    0x35, 0x14, 0xeb, 0x00, 0xeb, 0xe7, 0x1b, 0xfc, 0x09, 0x00, 0xf2, 0x04,
    0xf9, 0xe5, 0x1a, 0x0e, 0x08, 0x12, 0xf8, 0xfe, 0x09, 0x0f, 0x0d, 0xea,
    0x03, 0xe1, 0xfe, 0xf2, 0xec, 0x0d, 0x02, 0xdb, 0x04, 0x1d, 0xd4, 0x01,
    0xca, 0x13, 0x29, 0xca, 0x28, 0x04, 0xe2, 0xf1, 0xdb, 0x0b, 0x2c, 0xcd,
    0x44, 0x00, 0xe7, 0xf4, 0xd0, 0x12, 0x15, 0xff, 0x42, 0x11, 0x05, 0xfd,
    0xd9, 0x11, 0x1c, 0xf4, 0x15, 0xec, 0xf2, 0x24, 0xd6, 0x1d, 0xec, 0xda,
    0xf5, 0xec, 0xe5, 0x22, 0xf2, 0x0b, 0xbd, 0xd0, 0xeb, 0x05, 0x07, 0x1b,
    0x01, 0xed, 0xf5, 0x02, 0xcf, 0x08, 0x15, 0xfd, 0x1c, 0xe5, 0x04, 0x19,
    0xc7, 0x25, 0x22, 0xf3, 0xde, 0xfb, 0xfb, 0x20, 0xf6, 0xeb, 0x25, 0xfe,
    0xf5, 0x08, 0xf5, 0x17, 0x0e, 0x04, 0x1c, 0xf9, 0xee, 0xec, 0xe1, 0x06,
    0x12, 0xff, 0x2a, 0x13, 0xed, 0xfe, 0x05, 0x18, 0x25, 0x20, 0x09, 0x13,
    0xea, 0xd7, 0x05, 0x06, 0x33, 0x25, 0xff, 0x0a, 0xf0, 0xea, 0x17, 0xe1,
    0x30, 0xfa, 0x0d, 0x0a, 0x04, 0x00, 0x0e, 0xe9, 0x16, 0x20, 0x0d, 0x02,
    0xe8, 0xed, 0x07, 0xe8, 0x3c, 0xf1, 0xd9, 0xfa, 0xe1, 0xed, 0x18, 0xfc,
    0xf0, 0x09, 0xe3, 0x05, 0xfe, 0xd1, 0x0b, 0x0e, 0xf5, 0x25, 0xfd, 0xfb,
    0x30, 0x1e, 0x08, 0xfc, 0x0c, 0x21, 0xea, 0xfc, 0xe5, 0x1e, 0x16, 0xf5,
    0xf4, 0xfc, 0xf0, 0xea, 0xc4, 0x21, 0x27, 0xe9, 0x2b, 0xdb, 0xdb, 0xec,
    0xe5, 0xfe, 0x37, 0xe2, 0x46, 0x25, 0xfa, 0xec, 0xe4, 0xf3, 0x19, 0xf2,
    0x4c, 0x06, 0x00, 0xfb, 0xeb, 0x10, 0x10, 0xf7, 0x2a, 0xf8, 0xe9, 0x18,
    0xee, 0x21, 0xe8, 0xd5, 0xf4, 0x0a, 0xed, 0x24, 0xfe, 0xf9, 0xb2, 0xbc,
    0xf3, 0x1d, 0x00, 0x2f, 0x07, 0x08, 0xe1, 0xf1, 0xed, 0x27, 0x27, 0xfe,
    0x22, 0xfd, 0x02, 0x20, 0xd8, 0x05, 0x25, 0xec, 0xf1, 0xff, 0x0a, 0x0f,
    0xe6, 0xfe, 0x46, 0xfd, 0xe1, 0xca, 0xf7, 0x22, 0x03, 0x08, 0x21, 0xf5,
    0x0f, 0xf7, 0xfb, 0x0c, 0xfb, 0x14, 0x2d, 0x03, 0xe5, 0xe4, 0x09, 0x0b,
    0x1a, 0xe6, 0x01, 0x28, 0xe9, 0xd6, 0x0b, 0xf7, 0x2c, 0xfb, 0x11, 0xee,
    0x0b, 0xed, 0x17, 0xf0, 0x3c, 0xf5, 0x08, 0xfa, 0xf8, 0xcd, 0x17, 0xfa,
    0x39, 0xea, 0x11, 0xf5, 0xed, 0xee, 0x0a, 0xec, 0x41, 0xd6, 0xe7, 0xf9,
    0xfa, 0xc8, 0x15, 0xf7, 0x08, 0x0e, 0xe3, 0x08, 0xe8, 0xec, 0xfd, 0xfe,
    0xf1, 0x00, 0xe9, 0xf4, 0x09, 0x26, 0x02, 0x16, 0xf0, 0x01, 0xef, 0x01,
    0xff, 0x03, 0x22, 0xdb, 0xfc, 0xf5, 0xde, 0xe5, 0xc4, 0x01, 0x28, 0xd4,
    0x38, 0x08, 0xd0, 0xec, 0xd5, 0x04, 0x2f, 0xce, 0x4e, 0xeb, 0xf9, 0xe7,
    0xdf, 0xf0, 0x1b, 0xf5, 0x42, 0xf1, 0xf6, 0x09, 0xd5, 0x0a, 0x0d, 0x08,
    0x04, 0x05, 0xe2, 0x0e, 0xd7, 0x19, 0xdb, 0xda, 0xe1, 0x25, 0xde, 0x15,
    0x0e, 0x14, 0xbd, 0xb0, 0xe3, 0xe5, 0x24, 0x1e, 0xf8, 0x0d, 0xd8, 0xf7,
    0xf2, 0xff, 0x18, 0xf5, 0x07, 0xf0, 0x02, 0x25, 0xd5, 0x1e, 0x2e, 0xdf,
    0xe7, 0x05, 0xef, 0x11, 0xe8, 0xe7, 0x47, 0xf4, 0xe1, 0xde, 0x09, 0x36,
    0x1a, 0x11, 0x11, 0xf5, 0x12, 0xe5, 0xe7, 0x18, 0x01, 0x17, 0x2a, 0x03,
    0x05, 0xea, 0x09, 0x0b, 0x12, 0x04, 0x17, 0xf0, 0xee, 0xd7, 0x11, 0xed,
    0x3c, 0x17, 0x16, 0xff, 0x02, 0xdc, 0x21, 0xf3, 0x2e, 0xe5, 0x13, 0xef,
    0xec, 0xe2, 0x10, 0xd0, 0x2e, 0xee, 0xff, 0x01, 0xe0, 0xe5, 0x0b, 0xda,
    0x1f, 0xf8, 0xf6, 0xfb, 0x07, 0xdb, 0x05, 0xf6, 0x0c, 0xf3, 0xf0, 0x10,
    0xf9, 0xf5, 0xf2, 0x0d, 0x10, 0xf7, 0xf6, 0xff, 0x2b, 0x0d, 0x06, 0x1e,
    0xf3, 0x0c, 0xe9, 0x01, 0xf2, 0x23, 0xfe, 0xe9, 0xdd, 0x12, 0xdd, 0xf7,
    0xbb, 0x22, 0x1b, 0xd4, 0x38, 0x29, 0xd4, 0xcf, 0xf5, 0xf9, 0x27, 0xdd,
    0x47, 0x00, 0xf2, 0xe5, 0x09, 0xfc, 0x0e, 0xf9, 0x34, 0x0a, 0x02, 0xfd,
    0xec, 0x25, 0x1d, 0x03, 0x15, 0x09, 0xf1, 0x1b, 0xd0, 0x17, 0xda, 0xda,
    0xe7, 0x07, 0xe3, 0x15, 0xf1, 0x02, 0xb9, 0xce, 0xe6, 0x0c, 0x10, 0x31,
    0xfe, 0xf7, 0xd9, 0xfa, 0xed, 0xed, 0x33, 0xf4, 0x19, 0xe7, 0xfe, 0x3f,
...

This file has been truncated, please download it to see its full contents.

/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

// This is a standard TensorFlow Lite FlatBuffer model file that has been
// converted into a C data array, so it can be easily compiled into a binary
// for devices that don't have a file system. It was created using the command:
// xxd -i model.tflite > model.cc

#ifndef TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_MODEL_H_
#define TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_MODEL_H_

extern const unsigned char g_model[];
extern const int g_model_len;

#endif  // TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_MODEL_H_

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include "micro_features_no_micro_features_data.h"

// Golden test values for the expected spectrogram from a "no" sample file
// speech_commands_test_set_v0.02/no/f9643d42_nohash_4.wav.

const int g_no_micro_f9643d42_nohash_4_width = 40;
const int g_no_micro_f9643d42_nohash_4_height = 49;
const signed char g_no_micro_f9643d42_nohash_4_data[] = {
    103,  78,   64,   76,   75,   54,   53,   67,   77,   60,   56,   70,
    76,   71,   68,   58,   74,   32,   23,   -2,   -18,  11,   13,   15,
    9,    20,   5,    -7,   -18,  -2,   -10,  -18,  -10,  -12,  9,    7,
    -33,  -12,  -4,   -18,  57,   17,   55,   62,   70,   45,   61,   37,
    67,   52,   48,   47,   55,   46,   57,   47,   73,   17,   27,   20,
    19,   8,    15,   -6,   -1,   10,   -12,  -29,  -6,   -23,  -18,  -3,
    -1,   5,    3,    -4,   -12,  -8,   -1,   -14,  65,   48,   58,   43,
    48,   19,   39,   39,   57,   57,   58,   55,   67,   58,   49,   50,
    70,   27,   9,    16,   37,   4,    25,   4,    11,   9,    7,    -33,
    -7,   -12,  3,    -6,   -29,  -7,   -7,   -18,  -12,  -18,  -2,   -1,
    0,    31,   60,   -8,   51,   59,   70,   40,   71,   57,   52,   38,
    66,   48,   17,   6,    59,   8,    15,   7,    18,   4,    18,   -23,
    -8,   -4,   -3,   -12,  -3,   -26,  1,    10,   2,    -29,  -29,  -37,
    -7,   -4,   6,    -33,  67,   44,   59,   -4,   64,   51,   68,   55,
    74,   9,    40,   15,   57,   33,   60,   18,   40,   25,   27,   -20,
    25,   -16,  6,    17,   -10,  -12,  -23,  -43,  -23,  -23,  -29,  -37,
    -4,   -16,  -16,  -60,  -20,  -23,  -10,  -29,  -12,  15,   12,   -37,
    27,   15,   61,   44,   50,   8,    48,   22,   49,   -18,  46,   33,
    42,   34,   46,   -8,   4,    -18,  -43,  -43,  -10,  1,    -10,  -16,
    -10,  -77,  -16,  -33,  11,   -26,  -23,  -37,  0,    -8,   -16,  -29,
    42,   40,   68,   24,   47,   46,   53,   -128, 30,   2,    42,   21,
    21,   -4,   43,   2,    43,   5,    32,   -26,  7,    -37,  -43,  -23,
    -2,   -8,   2,    -37,  -50,  -60,  -1,   -7,   -33,  -77,  -6,   -18,
    -16,  -50,  -12,  -33,  53,   8,    52,   18,   51,   35,   69,   26,
    44,   8,    27,   -128, 21,   -33,  17,   -14,  38,   -128, -14,  -18,
    17,   -20,  -14,  -37,  8,    -60,  -33,  -33,  -33,  -43,  -12,  -29,
    -12,  -128, -33,  -60,  -26,  -77,  -26,  -50,  57,   29,   11,   30,
    53,   -10,  45,   15,   18,   -10,  42,   2,    31,   -29,  10,   -4,
    42,   -37,  -50,  -128, -4,   -43,  -20,  -77,  -14,  -26,  -33,  -128,
    -12,  -43,  -8,   -33,  -33,  -60,  -43,  -77,  -12,  -60,  -26,  -50,
    40,   -23,  36,   35,   50,   -2,   37,   27,   26,   -77,  49,   -7,
    28,   -43,  6,    11,   41,   -37,  33,   -26,  -14,  -12,  -6,   -33,
    -16,  -26,  -20,  -77,  -14,  -43,  -8,   -50,  -14,  -37,  -26,  -77,
    -26,  -77,  -14,  -29,  50,   -60,  25,   -26,  57,   38,   51,   1,
    50,   1,    53,   -18,  30,   -23,  11,   -128, 18,   -43,  20,   -26,
    -10,  -26,  -12,  -128, -50,  -60,  -37,  -77,  -20,  -43,  -50,  -128,
    -77,  -128, -77,  -128, -33,  -77,  -20,  -60,  53,   -10,  -37,  -128,
    10,   -128, 60,   18,   -8,   13,   37,   -37,  8,    -128, 3,    -77,
    32,   -29,  14,   10,   -12,  -77,  -37,  -77,  -37,  -60,  -23,  -128,
    -43,  -50,  -16,  -77,  -6,   -33,  0,    -60,  -43,  -128, -16,  -60,
    20,   -2,   51,   19,   43,   2,    63,   20,   60,   -4,   42,   -50,
    4,    -128, 2,    -3,   32,   -33,  -26,  -128, -18,  -128, -33,  -43,
    -7,   -60,  -50,  -77,  -29,  -77,  -23,  -128, -16,  -26,  -23,  -60,
    -37,  -77,  -37,  -128, -1,   -33,  39,   48,   60,   5,    8,    -128,
    44,   11,   4,    0,    13,   -77,  -2,   -20,  33,   -128, -33,  -77,
    -8,   -128, -14,  -128, -33,  -18,  -12,  -77,  -16,  -128, -37,  -128,
    -12,  -77,  -60,  -128, -23,  -60,  -23,  -128, 36,   -50,  46,   -128,
    66,   39,   18,   -14,  -12,  -77,  -20,  -6,   24,   -128, 28,   -26,
    21,   -77,  -6,   -33,  1,    -128, -43,  -128, -1,   -50,  -37,  -128,
    -50,  -128, -33,  -128, -18,  -128, -60,  -8,   -7,   -60,  -60,  -128,
    -6,   -29,  20,   -1,   73,   40,   -43,  -14,  33,   -43,  33,   -3,
    15,   -29,  29,   -43,  20,   -60,  -29,  -128, -20,  -26,  4,    -77,
    -16,  -60,  -33,  -50,  -29,  -128, -60,  -128, -77,  -128, -37,  -50,
    0,    -77,  -33,  -128, 39,   8,    47,   10,   62,   16,   2,    1,
    10,   7,    4,    -7,   6,    -128, -77,  -50,  19,   -77,  -77,  -128,
    -77,  -128, -50,  -128, -60,  -60,  -33,  -50,  -37,  -128, -128, -128,
    -60,  -128, -37,  -60,  -18,  -128, -33,  -77,  37,   23,   29,   -128,
    -128, -128, -16,  -128, -16,  -33,  21,   -20,  -8,   -60,  -2,   -60,
    11,   -128, -50,  -128, -50,  -128, -29,  -77,  -16,  -128, -26,  -128,
    -50,  -77,  -43,  -128, -128, -128, -50,  -128, -33,  -128, -33,  -50,
    -23,  -128, 24,   -128, -128, -77,  4,    -23,  32,   -128, 1,    -26,
    -14,  -128, 10,   -77,  -4,   -128, 1,    -50,  -8,   -77,  -77,  -77,
    -23,  -128, -50,  -43,  -33,  -128, -43,  -128, -128, -128, -43,  -128,
    -50,  -128, -128, -128, 44,   15,   14,   -128, 9,    -128, 21,   0,
    29,   -7,   18,   -7,   -7,   -128, -33,  -50,  14,   -60,  -60,  -128,
    -60,  -128, -37,  -128, -43,  -128, -20,  -128, -50,  -128, -43,  -77,
    -26,  -128, -60,  -50,  -60,  -128, -77,  -128, -3,   -128, 14,   -77,
    -26,  11,   47,   -77,  -7,   -77,  45,   -43,  -12,  14,   37,   -60,
    22,   -4,   5,    -77,  -14,  -128, -10,  -60,  22,   -77,  -12,  -60,
    -50,  -128, -60,  -128, -60,  -128, -43,  -128, -50,  -128, -77,  -50,
    27,   -37,  33,   -128, 4,    -29,  -4,   -50,  -20,  -128, 6,    -37,
    -33,  -128, -50,  -128, 34,   15,   -43,  -128, -20,  -50,  -3,   -37,
    -37,  -77,  -77,  -128, -43,  -128, -128, -128, 4,    -26,  -26,  27,
    0,    -128, -29,  -60,  35,   -26,  23,   -128, -29,  -77,  19,   14,
    28,   -128, -16,  -7,   31,   -1,   17,   11,   60,   44,   8,    11,
    18,   -128, -33,  -60,  -1,   -128, -43,  -128, -23,  -128, -128, -128,
    59,   43,   35,   61,   37,   -77,  -77,  -50,  116,  88,   98,   69,
    78,   53,   78,   40,   48,   7,    29,   -18,  -2,   -14,  5,    12,
    65,   35,   31,   -12,  33,   -2,   -6,   -1,   44,   -29,  -14,  -60,
    -4,   -43,  -37,  -128, 29,   18,   38,   51,   8,    -128, -12,  -37,
    115,  91,   113,  77,   89,   36,   60,   44,   49,   36,   27,   31,
    63,   30,   62,   14,   55,   49,   42,   0,    45,   17,   -23,  1,
    30,   -37,  -50,  -77,  -8,   -60,  9,    -60,  -12,  -50,  13,   4,
    23,   -6,   28,   13,   107,  78,   101,  73,   89,   46,   63,   17,
    34,   -43,  -6,   30,   67,   40,   77,   21,   53,   39,   38,   12,
    -6,   5,    28,   -2,   18,   -43,  0,    -128, -29,  -77,  18,   -128,
    -2,   -77,  39,   35,   38,   35,   50,   29,   100,  70,   94,   69,
    86,   50,   45,   38,   45,   12,   58,   64,   74,   36,   77,   45,
    78,   62,   8,    -60,  38,   6,    21,   7,    8,    -37,  -1,   -20,
    48,   -37,  8,    -10,  8,    13,   45,   39,   38,   22,   49,   25,
    94,   63,   87,   66,   84,   -128, 29,   20,   55,   51,   80,   36,
    62,   30,   81,   72,   68,   37,   51,   27,   54,   22,   16,   -29,
    4,    9,    57,   15,   35,   -43,  -77,  -20,  4,    6,    37,   -1,
    40,   31,   47,   14,   89,   68,   96,   83,   111,  96,   115,  87,
    99,   76,   105,  84,   105,  86,   113,  91,   108,  87,   110,  78,
    80,   46,   22,   74,   88,   72,   103,  86,   80,   68,   48,   24,
    68,   48,   55,   36,   108,  90,   90,   63,   83,   63,   87,   64,
    90,   92,   113,  88,   102,  79,   109,  83,   100,  89,   109,  60,
    56,   21,   75,   62,   81,   45,   63,   73,   93,   65,   94,   80,
    89,   81,   73,   3,    43,   60,   102,  70,   84,   67,   99,   74,
    78,   57,   79,   50,   93,   82,   98,   56,   77,   70,   91,   71,
    85,   82,   86,   13,   45,   -18,  48,   40,   53,   28,   85,   60,
    65,   52,   86,   78,   76,   46,   73,   19,   35,   54,   75,   40,
    71,   60,   82,   37,   69,   42,   62,   40,   96,   70,   85,   77,
    70,   68,   103,  84,   94,   69,   81,   -128, -128, -128, -43,  -37,
    40,   2,    48,   45,   76,   37,   65,   16,   43,   18,   58,   20,
    27,   12,   71,   31,   53,   44,   88,   47,   50,   33,   39,   8,
    89,   57,   88,   69,   72,   63,   100,  68,   81,   -77,  -10,  -128,
    -128, -128, -128, -128, 13,   -77,  8,    27,   60,   28,   41,   -128,
    -37,  -128, 28,   -43,  -18,  -128, 47,   -37,  45,   27,   51,   -29,
    15,   39,   52,   30,   49,   -33,  65,   15,   76,   71,   90,   19,
    46,   -128, -16,  -128, -128, -128, -128, -128, -128, -128, -18,  -128,
    -20,  -128, 32,   -128, 21,   -33,  45,   -128, -128, -128, -12,  -128,
    -6,   -14,  43,   -128, -128, -128, -128, -128, 52,   -18,  69,   -43,
    78,   55,   42,   -128, -29,  -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, 14,   -128, -16,  -128, -128, -128, 7,    -128,
    -128, -128, -128, -128, -128, -128, 12,   -128, -128, -128, -128, -16,
    59,   -50,  35,   -128, 42,   0,    47,   -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -33,  -128, -23,  -128,
    -128, -128, -23,  -128, -128, -128, -128, -128, -128, -128, -33,  -128,
    -128, -128, -128, -128, -128, -128, -8,   -128, 36,   -50,  -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -37,  -128, -128, -60,  -10,  -128, -128, -128, -128, -128,
    -128, -128, 21,   -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -12,  -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -77,  -128, -128, -128, -29,  -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -29,  -128, -128, -128, -128, -128, -128, -128, -128, -128, -50,  -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
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    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128,
};

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#ifndef TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_NO_MICRO_FEATURES_DATA_H_
#define TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_NO_MICRO_FEATURES_DATA_H_

extern const int g_no_micro_f9643d42_nohash_4_width;
extern const int g_no_micro_f9643d42_nohash_4_height;
extern const signed char g_no_micro_f9643d42_nohash_4_data[];

#endif  // TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_NO_MICRO_FEATURES_DATA_H_

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include "micro_features_yes_micro_features_data.h"

// Golden test values for the expected spectrogram from a "yes" sample file
// speech_commands_test_set_v0.02/yes/f2e59fea_nohash_1.wav.

const int g_yes_micro_f2e59fea_nohash_1_width = 40;
const int g_yes_micro_f2e59fea_nohash_1_height = 49;
const signed char g_yes_micro_f2e59fea_nohash_1_data[] = {
    116,  98,   118,  95,   106,  85,   101,  81,   67,   -18,  -33,  -12,
    -26,  -128, 9,    34,   56,   45,   9,    -12,  5,    30,   23,   28,
    0,    -18,  0,    -128, -60,  -50,  -50,  -37,  -60,  -60,  -50,  -26,
    -33,  -50,  -33,  -50,  83,   61,   81,   55,   76,   61,   73,   64,
    38,   -8,   -37,  -20,  -18,  -20,  48,   29,   52,   41,   55,   18,
    25,   37,   44,   37,   8,    15,   -6,   -60,  -128, -50,  -37,  -37,
    -18,  -37,  -26,  -29,  -37,  -60,  -50,  -60,  95,   59,   52,   -4,
    54,   -18,  68,   43,   31,   -18,  -26,  -33,  -37,  -29,  33,   7,
    -3,   8,    26,   24,   36,   6,    36,   23,   14,   8,    -29,  -37,
    -37,  -37,  -50,  -50,  -26,  -8,   -26,  -37,  -18,  -37,  -60,  -77,
    50,   48,   83,   44,   56,   -128, -33,  -60,  1,    -26,  -60,  -43,
    -14,  -23,  -18,  -43,  -26,  -33,  13,   -77,  -43,  -77,  -33,  -37,
    16,   -12,  -37,  -50,  -50,  -77,  -20,  -43,  -60,  -128, -60,  -77,
    -37,  -77,  -60,  -128, 37,   -10,  65,   -7,   28,   -128, 10,   -77,
    -37,  -128, -77,  -128, -77,  -43,  -128, -128, -77,  -128, -128, -128,
    -128, -128, -14,  -128, -43,  -50,  -37,  -77,  -128, -128, -77,  -43,
    -29,  -43,  -20,  -60,  -37,  -43,  -50,  -128, -77,  -128, -18,  -128,
    -60,  -128, -128, -128, -77,  -128, -77,  -128, -128, -128, -60,  -37,
    -20,  -128, -60,  -128, -128, -128, -60,  -128, -77,  -60,  -128, -50,
    -60,  -128, -77,  -128, -50,  -60,  -37,  -60,  -50,  -77,  -77,  -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -37,  -128,
    -128, -128, -128, -128, -77,  -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -77,  -60,  -128, -128, -50,  -128, -50,  -128,
    -50,  -128, -77,  -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -77,  -128, -77,  -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -77,  -128, -77,  -128, -77,  -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -77,  -128, -128, -128,
    -128, -77,  -50,  -128, -128, -77,  -77,  -128, -128, -128, -50,  -128,
    85,   43,   65,   53,   69,   60,   45,   3,    46,   -12,  9,    -23,
    32,   -1,   -128, -128, -128, -128, -1,   37,   38,   33,   43,   36,
    58,   70,   68,   39,   6,    10,   32,   6,    8,    -23,  -77,  -128,
    -29,  -128, -77,  -128, 101,  87,   102,  91,   110,  88,   101,  83,
    110,  95,   111,  83,   81,   84,   106,  90,   93,   82,   98,   91,
    108,  95,   118,  97,   118,  97,   116,  96,   113,  90,   110,  96,
    107,  85,   94,   66,   69,   36,   29,   0,    100,  60,   105,  68,
    92,   93,   113,  92,   107,  85,   107,  83,   104,  91,   105,  85,
    112,  88,   101,  80,   101,  79,   96,   80,   98,   80,   105,  83,
    98,   81,   103,  71,   100,  79,   83,   78,   91,   47,   50,   13,
    108,  81,   93,   78,   98,   76,   105,  76,   98,   40,   77,   72,
    81,   62,   93,   77,   96,   80,   98,   61,   97,   69,   88,   61,
    71,   56,   98,   68,   97,   72,   89,   51,   81,   61,   88,   75,
    86,   56,   48,   13,   71,   22,   84,   66,   76,   -7,   48,   61,
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    -128, -128, -128, -128, -23,  -128, -128, -128, -128, -128, -128, -128,
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    -77,  -128, -37,  -128, -50,  -128, -128, -128, -128, -128, -18,  -128,
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    55,   13,   60,   26,   69,   42,   63,   -29,  57,   -128, -3,   -128,
    3,    -128, -29,  -60,  52,   -43,  63,   56,   86,   75,   95,   75,
    85,   63,   82,   10,   50,   -128, 31,   -77,  0,    -77,  -23,  -128,
    12,   -77,  51,   -3,   58,   -14,  44,   0,    48,   4,    53,   47,
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    117,  88,   107,  94,   112,  64,   96,   83,   -128, -128, 7,    -128,
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    24,   12,   74,   76,   105,  76,   99,   80,   108,  79,   103,  85,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
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    -128, -128, -60,  -128, -128, 5,    73,   53,   93,   70,   101,  73,
    94,   57,   86,   66,   -18,  -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -50,  -128, 36,   -128, -128, -128, -128, -128, -20,  -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, 23,   37,
    75,   54,   97,   70,   83,   52,   85,   65,   7,    -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -43,  -128, 23,   -128, -43,  -128,
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    -128, -128, -26,  -37,  65,   33,   76,   37,   73,   50,   77,   47,
    -12,  -128, -128, -128, -128, -128, -128, -128, -128, -128, -7,   -14,
    -4,   -128, -14,  -128, 18,   -60,  -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -26,  -60,  71,   42,   68,   53,
    81,   49,   73,   36,   -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -18,  -128, -128, -128, -128, -128, -128, -128,
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    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
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    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128,
    -128, -128, -128, -128,
};

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#ifndef TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_YES_MICRO_FEATURES_DATA_H_
#define TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_YES_MICRO_FEATURES_DATA_H_

extern const int g_yes_micro_f2e59fea_nohash_1_width;
extern const int g_yes_micro_f2e59fea_nohash_1_height;
extern const signed char g_yes_micro_f2e59fea_nohash_1_data[];

#endif  // TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MICRO_FEATURES_YES_MICRO_FEATURES_DATA_H_

/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include <TensorFlowLite.h>

#include "main_functions.h"

#include "audio_provider.h"
#include "command_responder.h"
#include "feature_provider.h"
#include "micro_features_micro_model_settings.h"
#include "micro_features_model.h"
#include "recognize_commands.h"
#include "tensorflow/lite/micro/micro_error_reporter.h"
#include "tensorflow/lite/micro/micro_interpreter.h"
#include "tensorflow/lite/micro/micro_mutable_op_resolver.h"
#include "tensorflow/lite/schema/schema_generated.h"
#include "tensorflow/lite/version.h"

// Globals, used for compatibility with Arduino-style sketches.
namespace {
tflite::ErrorReporter* error_reporter = nullptr;
const tflite::Model* model = nullptr;
tflite::MicroInterpreter* interpreter = nullptr;
TfLiteTensor* model_input = nullptr;
FeatureProvider* feature_provider = nullptr;
RecognizeCommands* recognizer = nullptr;
int32_t previous_time = 0;

// Create an area of memory to use for input, output, and intermediate arrays.
// The size of this will depend on the model you're using, and may need to be
// determined by experimentation.
constexpr int kTensorArenaSize = 10 * 1024;
uint8_t tensor_arena[kTensorArenaSize];
int8_t feature_buffer[kFeatureElementCount];
int8_t* model_input_buffer = nullptr;
}  // namespace

// The name of this function is important for Arduino compatibility.
void setup() {
  // Set up logging. Google style is to avoid globals or statics because of
  // lifetime uncertainty, but since this has a trivial destructor it's okay.
  // NOLINTNEXTLINE(runtime-global-variables)
  static tflite::MicroErrorReporter micro_error_reporter;
  error_reporter = &micro_error_reporter;

  // Map the model into a usable data structure. This doesn't involve any
  // copying or parsing, it's a very lightweight operation.
  model = tflite::GetModel(g_model);
  if (model->version() != TFLITE_SCHEMA_VERSION) {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "Model provided is schema version %d not equal "
                         "to supported version %d.",
                         model->version(), TFLITE_SCHEMA_VERSION);
    return;
  }

  // Pull in only the operation implementations we need.
  // This relies on a complete list of all the ops needed by this graph.
  // An easier approach is to just use the AllOpsResolver, but this will
  // incur some penalty in code space for op implementations that are not
  // needed by this graph.
  //
  // tflite::AllOpsResolver resolver;
  // NOLINTNEXTLINE(runtime-global-variables)
  static tflite::MicroMutableOpResolver<4> micro_op_resolver(error_reporter);
  if (micro_op_resolver.AddDepthwiseConv2D() != kTfLiteOk) {
    return;
  }
  if (micro_op_resolver.AddFullyConnected() != kTfLiteOk) {
    return;
  }
  if (micro_op_resolver.AddSoftmax() != kTfLiteOk) {
    return;
  }
  if (micro_op_resolver.AddReshape() != kTfLiteOk) {
    return;
  }

  // Build an interpreter to run the model with.
  static tflite::MicroInterpreter static_interpreter(
      model, micro_op_resolver, tensor_arena, kTensorArenaSize, error_reporter);
  interpreter = &static_interpreter;

  // Allocate memory from the tensor_arena for the model's tensors.
  TfLiteStatus allocate_status = interpreter->AllocateTensors();
  if (allocate_status != kTfLiteOk) {
    TF_LITE_REPORT_ERROR(error_reporter, "AllocateTensors() failed");
    return;
  }

  // Get information about the memory area to use for the model's input.
  model_input = interpreter->input(0);
  if ((model_input->dims->size != 2) || (model_input->dims->data[0] != 1) ||
      (model_input->dims->data[1] !=
       (kFeatureSliceCount * kFeatureSliceSize)) ||
      (model_input->type != kTfLiteInt8)) {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "Bad input tensor parameters in model");
    return;
  }
  model_input_buffer = model_input->data.int8;

  // Prepare to access the audio spectrograms from a microphone or other source
  // that will provide the inputs to the neural network.
  // NOLINTNEXTLINE(runtime-global-variables)
  static FeatureProvider static_feature_provider(kFeatureElementCount,
                                                 feature_buffer);
  feature_provider = &static_feature_provider;

  static RecognizeCommands static_recognizer(error_reporter);
  recognizer = &static_recognizer;

  previous_time = 0;
}

// The name of this function is important for Arduino compatibility.
void loop() {
  // Fetch the spectrogram for the current time.
  const int32_t current_time = LatestAudioTimestamp();
  int how_many_new_slices = 0;
  TfLiteStatus feature_status = feature_provider->PopulateFeatureData(
      error_reporter, previous_time, current_time, &how_many_new_slices);
  if (feature_status != kTfLiteOk) {
    TF_LITE_REPORT_ERROR(error_reporter, "Feature generation failed");
    return;
  }
  previous_time = current_time;
  // If no new audio samples have been received since last time, don't bother
  // running the network model.
  if (how_many_new_slices == 0) {
    return;
  }

  // Copy feature buffer to input tensor
  for (int i = 0; i < kFeatureElementCount; i++) {
    model_input_buffer[i] = feature_buffer[i];
  }

  // Run the model on the spectrogram input and make sure it succeeds.
  TfLiteStatus invoke_status = interpreter->Invoke();
  if (invoke_status != kTfLiteOk) {
    TF_LITE_REPORT_ERROR(error_reporter, "Invoke failed");
    return;
  }

  // Obtain a pointer to the output tensor
  TfLiteTensor* output = interpreter->output(0);
  // Determine whether a command was recognized based on the output of inference
  const char* found_command = nullptr;
  uint8_t score = 0;
  bool is_new_command = false;
  TfLiteStatus process_status = recognizer->ProcessLatestResults(
      output, current_time, &found_command, &score, &is_new_command);
  if (process_status != kTfLiteOk) {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "RecognizeCommands::ProcessLatestResults() failed");
    return;
  }
  // Do something based on the recognized command. The default implementation
  // just prints to the error console, but you should replace this with your
  // own function for a real application.
  RespondToCommand(error_reporter, current_time, found_command, score,
                   is_new_command);
}

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#if defined(ARDUINO) && !defined(ARDUINO_ARDUINO_NANO33BLE)
#define ARDUINO_EXCLUDE_CODE
#endif  // defined(ARDUINO) && !defined(ARDUINO_ARDUINO_NANO33BLE)

#ifndef ARDUINO_EXCLUDE_CODE

#include "command_responder.h"

#include "Arduino.h"

// Toggles the built-in LED every inference, and lights a colored LED depending
// on which word was detected.
void RespondToCommand(tflite::ErrorReporter* error_reporter,
                      int32_t current_time, const char* found_command,
                      uint8_t score, bool is_new_command) {
  static bool is_initialized = false;
  if (!is_initialized) {
    pinMode(LED_BUILTIN, OUTPUT);
    // Pins for the built-in RGB LEDs on the Arduino Nano 33 BLE Sense
    pinMode(LEDR, OUTPUT);
    pinMode(LEDG, OUTPUT);
    pinMode(LEDB, OUTPUT);
    // Ensure the LED is off by default.
    // Note: The RGB LEDs on the Arduino Nano 33 BLE
    // Sense are on when the pin is LOW, off when HIGH.
    digitalWrite(LEDR, HIGH);
    digitalWrite(LEDG, HIGH);
    digitalWrite(LEDB, HIGH);
    is_initialized = true;
  }
  static int32_t last_command_time = 0;
  static int count = 0;
  static int certainty = 220;

  if (is_new_command) {
    TF_LITE_REPORT_ERROR(error_reporter, "Heard %s (%d) @%dms", found_command,
                         score, current_time);
    // If we hear a command, light up the appropriate LED
    if (found_command[0] == 'y') {
      last_command_time = current_time;
      digitalWrite(LEDG, LOW);  // Green for yes
    }

    if (found_command[0] == 'n') {
      last_command_time = current_time;
      digitalWrite(LEDR, LOW);  // Red for no
    }

    if (found_command[0] == 'u') {
      last_command_time = current_time;
      digitalWrite(LEDB, LOW);  // Blue for unknown
    }
  }

  // If last_command_time is non-zero but was >3 seconds ago, zero it
  // and switch off the LED.
  if (last_command_time != 0) {
    if (last_command_time < (current_time - 3000)) {
      last_command_time = 0;
      digitalWrite(LED_BUILTIN, LOW);
      digitalWrite(LEDR, HIGH);
      digitalWrite(LEDG, HIGH);
      digitalWrite(LEDB, HIGH);
    }
    // If it is non-zero but <3 seconds ago, do nothing.
    return;
  }

  // Otherwise, toggle the LED every time an inference is performed.
  ++count;
  if (count & 1) {
    digitalWrite(LED_BUILTIN, HIGH);
  } else {
    digitalWrite(LED_BUILTIN, LOW);
  }
}

#endif  // ARDUINO_EXCLUDE_CODE

/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include "recognize_commands.h"

#include <limits>

RecognizeCommands::RecognizeCommands(tflite::ErrorReporter* error_reporter,
                                     int32_t average_window_duration_ms,
                                     uint8_t detection_threshold,
                                     int32_t suppression_ms,
                                     int32_t minimum_count)
    : error_reporter_(error_reporter),
      average_window_duration_ms_(average_window_duration_ms),
      detection_threshold_(detection_threshold),
      suppression_ms_(suppression_ms),
      minimum_count_(minimum_count),
      previous_results_(error_reporter) {
  previous_top_label_ = "silence";
  previous_top_label_time_ = std::numeric_limits<int32_t>::min();
}

TfLiteStatus RecognizeCommands::ProcessLatestResults(
    const TfLiteTensor* latest_results, const int32_t current_time_ms,
    const char** found_command, uint8_t* score, bool* is_new_command) {
  if ((latest_results->dims->size != 2) ||
      (latest_results->dims->data[0] != 1) ||
      (latest_results->dims->data[1] != kCategoryCount)) {
    TF_LITE_REPORT_ERROR(
        error_reporter_,
        "The results for recognition should contain %d elements, but there are "
        "%d in an %d-dimensional shape",
        kCategoryCount, latest_results->dims->data[1],
        latest_results->dims->size);
    return kTfLiteError;
  }

  if (latest_results->type != kTfLiteInt8) {
    TF_LITE_REPORT_ERROR(
        error_reporter_,
        "The results for recognition should be int8_t elements, but are %d",
        latest_results->type);
    return kTfLiteError;
  }

  if ((!previous_results_.empty()) &&
      (current_time_ms < previous_results_.front().time_)) {
    TF_LITE_REPORT_ERROR(
        error_reporter_,
        "Results must be fed in increasing time order, but received a "
        "timestamp of %d that was earlier than the previous one of %d",
        current_time_ms, previous_results_.front().time_);
    return kTfLiteError;
  }

  // Add the latest results to the head of the queue.
  previous_results_.push_back({current_time_ms, latest_results->data.int8});

  // Prune any earlier results that are too old for the averaging window.
  const int64_t time_limit = current_time_ms - average_window_duration_ms_;
  while ((!previous_results_.empty()) &&
         previous_results_.front().time_ < time_limit) {
    previous_results_.pop_front();
  }

  // If there are too few results, assume the result will be unreliable and
  // bail.
  const int64_t how_many_results = previous_results_.size();
  const int64_t earliest_time = previous_results_.front().time_;
  const int64_t samples_duration = current_time_ms - earliest_time;
  if ((how_many_results < minimum_count_) ||
      (samples_duration < (average_window_duration_ms_ / 4))) {
    *found_command = previous_top_label_;
    *score = 0;
    *is_new_command = false;
    return kTfLiteOk;
  }

  // Calculate the average score across all the results in the window.
  int32_t average_scores[kCategoryCount];
  for (int offset = 0; offset < previous_results_.size(); ++offset) {
    PreviousResultsQueue::Result previous_result =
        previous_results_.from_front(offset);
    const int8_t* scores = previous_result.scores;
    for (int i = 0; i < kCategoryCount; ++i) {
      if (offset == 0) {
        average_scores[i] = scores[i] + 128;
      } else {
        average_scores[i] += scores[i] + 128;
      }
    }
  }
  for (int i = 0; i < kCategoryCount; ++i) {
    average_scores[i] /= how_many_results;
  }

  // Find the current highest scoring category.
  int current_top_index = 0;
  int32_t current_top_score = 0;
  for (int i = 0; i < kCategoryCount; ++i) {
    if (average_scores[i] > current_top_score) {
      current_top_score = average_scores[i];
      current_top_index = i;
    }
  }
  const char* current_top_label = kCategoryLabels[current_top_index];

  // If we've recently had another label trigger, assume one that occurs too
  // soon afterwards is a bad result.
  int64_t time_since_last_top;
  if ((previous_top_label_ == kCategoryLabels[0]) ||
      (previous_top_label_time_ == std::numeric_limits<int32_t>::min())) {
    time_since_last_top = std::numeric_limits<int32_t>::max();
  } else {
    time_since_last_top = current_time_ms - previous_top_label_time_;
  }
  if ((current_top_score > detection_threshold_) &&
      ((current_top_label != previous_top_label_) ||
       (time_since_last_top > suppression_ms_))) {
    previous_top_label_ = current_top_label;
    previous_top_label_time_ = current_time_ms;
    *is_new_command = true;
  } else {
    *is_new_command = false;
  }
  *found_command = current_top_label;
  *score = current_top_score;

  return kTfLiteOk;
}

/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#ifndef TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_RECOGNIZE_COMMANDS_H_
#define TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_RECOGNIZE_COMMANDS_H_

#include <cstdint>

#include "tensorflow/lite/c/common.h"
#include "micro_features_micro_model_settings.h"
#include "tensorflow/lite/micro/micro_error_reporter.h"

// Partial implementation of std::dequeue, just providing the functionality
// that's needed to keep a record of previous neural network results over a
// short time period, so they can be averaged together to produce a more
// accurate overall prediction. This doesn't use any dynamic memory allocation
// so it's a better fit for microcontroller applications, but this does mean
// there are hard limits on the number of results it can store.
class PreviousResultsQueue {
 public:
  PreviousResultsQueue(tflite::ErrorReporter* error_reporter)
      : error_reporter_(error_reporter), front_index_(0), size_(0) {}

  // Data structure that holds an inference result, and the time when it
  // was recorded.
  struct Result {
    Result() : time_(0), scores() {}
    Result(int32_t time, int8_t* input_scores) : time_(time) {
      for (int i = 0; i < kCategoryCount; ++i) {
        scores[i] = input_scores[i];
      }
    }
    int32_t time_;
    int8_t scores[kCategoryCount];
  };

  int size() { return size_; }
  bool empty() { return size_ == 0; }
  Result& front() { return results_[front_index_]; }
  Result& back() {
    int back_index = front_index_ + (size_ - 1);
    if (back_index >= kMaxResults) {
      back_index -= kMaxResults;
    }
    return results_[back_index];
  }

  void push_back(const Result& entry) {
    if (size() >= kMaxResults) {
      TF_LITE_REPORT_ERROR(
          error_reporter_,
          "Couldn't push_back latest result, too many already!");
      return;
    }
    size_ += 1;
    back() = entry;
  }

  Result pop_front() {
    if (size() <= 0) {
      TF_LITE_REPORT_ERROR(error_reporter_,
                           "Couldn't pop_front result, none present!");
      return Result();
    }
    Result result = front();
    front_index_ += 1;
    if (front_index_ >= kMaxResults) {
      front_index_ = 0;
    }
    size_ -= 1;
    return result;
  }

  // Most of the functions are duplicates of dequeue containers, but this
  // is a helper that makes it easy to iterate through the contents of the
  // queue.
  Result& from_front(int offset) {
    if ((offset < 0) || (offset >= size_)) {
      TF_LITE_REPORT_ERROR(error_reporter_,
                           "Attempt to read beyond the end of the queue!");
      offset = size_ - 1;
    }
    int index = front_index_ + offset;
    if (index >= kMaxResults) {
      index -= kMaxResults;
    }
    return results_[index];
  }

 private:
  tflite::ErrorReporter* error_reporter_;
  static constexpr int kMaxResults = 50;
  Result results_[kMaxResults];

  int front_index_;
  int size_;
};

// This class is designed to apply a very primitive decoding model on top of the
// instantaneous results from running an audio recognition model on a single
// window of samples. It applies smoothing over time so that noisy individual
// label scores are averaged, increasing the confidence that apparent matches
// are real.
// To use it, you should create a class object with the configuration you
// want, and then feed results from running a TensorFlow model into the
// processing method. The timestamp for each subsequent call should be
// increasing from the previous, since the class is designed to process a stream
// of data over time.
class RecognizeCommands {
 public:
  // labels should be a list of the strings associated with each one-hot score.
  // The window duration controls the smoothing. Longer durations will give a
  // higher confidence that the results are correct, but may miss some commands.
  // The detection threshold has a similar effect, with high values increasing
  // the precision at the cost of recall. The minimum count controls how many
  // results need to be in the averaging window before it's seen as a reliable
  // average. This prevents erroneous results when the averaging window is
  // initially being populated for example. The suppression argument disables
  // further recognitions for a set time after one has been triggered, which can
  // help reduce spurious recognitions.
  explicit RecognizeCommands(tflite::ErrorReporter* error_reporter,
                             int32_t average_window_duration_ms = 1000,
                             uint8_t detection_threshold = 200,
                             int32_t suppression_ms = 1500,
                             int32_t minimum_count = 3);

  // Call this with the results of running a model on sample data.
  TfLiteStatus ProcessLatestResults(const TfLiteTensor* latest_results,
                                    const int32_t current_time_ms,
                                    const char** found_command, uint8_t* score,
                                    bool* is_new_command);

 private:
  // Configuration
  tflite::ErrorReporter* error_reporter_;
  int32_t average_window_duration_ms_;
  uint8_t detection_threshold_;
  int32_t suppression_ms_;
  int32_t minimum_count_;

  // Working variables
  PreviousResultsQueue previous_results_;
  const char* previous_top_label_;
  int32_t previous_top_label_time_;
};

#endif  // TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_RECOGNIZE_COMMANDS_H_

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#if defined(ARDUINO) && !defined(ARDUINO_SFE_EDGE)
#define ARDUINO_EXCLUDE_CODE
#endif  // defined(ARDUINO) && !defined(ARDUINO_SFE_EDGE)

#ifndef ARDUINO_EXCLUDE_CODE

#include "audio_provider.h"

#include <limits>

// These are headers from Ambiq's Apollo3 SDK.
#include "am_bsp.h"
#include "am_mcu_apollo.h"
#include "am_util.h"
#include "micro_features_micro_model_settings.h"

namespace {

// These are the raw buffers that are filled by the ADC during DMA
constexpr int kAdcNumSlots = 2;
constexpr int kAdcSamplesPerSlot = 1024;
constexpr int kAdcSampleBufferSize = (kAdcNumSlots * kAdcSamplesPerSlot);
uint32_t g_ui32ADCSampleBuffer0[kAdcSampleBufferSize];
uint32_t g_ui32ADCSampleBuffer1[kAdcSampleBufferSize];
// Controls the double buffering between the two DMA buffers.
int g_dma_destination_index = 0;
// ADC Device Handle.
static void* g_adc_handle;
// ADC DMA error flag.
volatile bool g_adc_dma_error;
// So the interrupt can use the passed-in error handler to report issues.
tflite::ErrorReporter* g_adc_dma_error_reporter = nullptr;

// Holds a longer history of audio samples in a ring buffer.
constexpr int kAudioCaptureBufferSize = 16000;
int16_t g_audio_capture_buffer[kAudioCaptureBufferSize] = {};
int g_audio_capture_buffer_start = 0;
int64_t g_total_samples_captured = 0;
int32_t g_latest_audio_timestamp = 0;

// Copy of audio samples returned to the caller.
int16_t g_audio_output_buffer[kMaxAudioSampleSize];
bool g_is_audio_initialized = false;

// Start the DMA fetch of ADC samples.
void adc_start_dma(tflite::ErrorReporter* error_reporter) {
  am_hal_adc_dma_config_t ADCDMAConfig;

  // Configure the ADC to use DMA for the sample transfer.
  ADCDMAConfig.bDynamicPriority = true;
  ADCDMAConfig.ePriority = AM_HAL_ADC_PRIOR_SERVICE_IMMED;
  ADCDMAConfig.bDMAEnable = true;
  ADCDMAConfig.ui32SampleCount = kAdcSampleBufferSize;
  if (g_dma_destination_index == 0) {
    ADCDMAConfig.ui32TargetAddress = (uint32_t)g_ui32ADCSampleBuffer0;
  } else {
    ADCDMAConfig.ui32TargetAddress = (uint32_t)g_ui32ADCSampleBuffer1;
  }
  if (AM_HAL_STATUS_SUCCESS !=
      am_hal_adc_configure_dma(g_adc_handle, &ADCDMAConfig)) {
    TF_LITE_REPORT_ERROR(error_reporter, "Error - configuring ADC DMA failed.");
  }

  // Reset the ADC DMA flags.
  g_adc_dma_error = false;
  g_adc_dma_error_reporter = error_reporter;
}

// Configure the ADC.
void adc_config0(tflite::ErrorReporter* error_reporter) {
  am_hal_adc_config_t ADCConfig;
  am_hal_adc_slot_config_t ADCSlotConfig;

  // Initialize the ADC and get the handle.
  if (AM_HAL_STATUS_SUCCESS != am_hal_adc_initialize(0, &g_adc_handle)) {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "Error - reservation of the ADC0 instance failed.");
  }

  // Power on the ADC.
  if (AM_HAL_STATUS_SUCCESS !=
      am_hal_adc_power_control(g_adc_handle, AM_HAL_SYSCTRL_WAKE, false)) {
    TF_LITE_REPORT_ERROR(error_reporter, "Error - ADC0 power on failed.");
  }

  // Set up the ADC configuration parameters. These settings are reasonable
  // for accurate measurements at a low sample rate.
  ADCConfig.eClock = AM_HAL_ADC_CLKSEL_HFRC_DIV2;
  ADCConfig.ePolarity = AM_HAL_ADC_TRIGPOL_RISING;
  ADCConfig.eTrigger = AM_HAL_ADC_TRIGSEL_SOFTWARE;
  ADCConfig.eReference =
      AM_HAL_ADC_REFSEL_INT_2P0;  // AM_HAL_ADC_REFSEL_INT_1P5;
  ADCConfig.eClockMode = AM_HAL_ADC_CLKMODE_LOW_LATENCY;
  ADCConfig.ePowerMode = AM_HAL_ADC_LPMODE0;
  ADCConfig.eRepeat = AM_HAL_ADC_REPEATING_SCAN;
  if (AM_HAL_STATUS_SUCCESS != am_hal_adc_configure(g_adc_handle, &ADCConfig)) {
    TF_LITE_REPORT_ERROR(error_reporter, "Error - configuring ADC0 failed.");
  }

  // Set up an ADC slot (2)
  ADCSlotConfig.eMeasToAvg = AM_HAL_ADC_SLOT_AVG_1;
  ADCSlotConfig.ePrecisionMode = AM_HAL_ADC_SLOT_14BIT;
  ADCSlotConfig.eChannel = AM_HAL_ADC_SLOT_CHSEL_SE2;
  ADCSlotConfig.bWindowCompare = false;
  ADCSlotConfig.bEnabled = true;
  if (AM_HAL_STATUS_SUCCESS !=
      am_hal_adc_configure_slot(g_adc_handle, 2, &ADCSlotConfig)) {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "Error - configuring ADC Slot 2 failed.");
  }

  // Set up an ADC slot (1)
  ADCSlotConfig.eMeasToAvg = AM_HAL_ADC_SLOT_AVG_1;
  ADCSlotConfig.ePrecisionMode = AM_HAL_ADC_SLOT_14BIT;
  ADCSlotConfig.eChannel = AM_HAL_ADC_SLOT_CHSEL_SE1;
  ADCSlotConfig.bWindowCompare = false;
  ADCSlotConfig.bEnabled = true;
  if (AM_HAL_STATUS_SUCCESS !=
      am_hal_adc_configure_slot(g_adc_handle, 1, &ADCSlotConfig)) {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "Error - configuring ADC Slot 1 failed.");
  }

  // Configure the ADC to use DMA for the sample transfer.
  adc_start_dma(error_reporter);

  // For this example, the samples will be coming in slowly. This means we
  // can afford to wake up for every conversion.
  am_hal_adc_interrupt_enable(g_adc_handle,
                              AM_HAL_ADC_INT_DERR | AM_HAL_ADC_INT_DCMP);

  // Enable the ADC.
  if (AM_HAL_STATUS_SUCCESS != am_hal_adc_enable(g_adc_handle)) {
    TF_LITE_REPORT_ERROR(error_reporter, "Error - enabling ADC0 failed.");
  }
}

// Initialize the ADC repetitive sample timer A3.
void init_timerA3_for_ADC() {
  // Start a timer to trigger the ADC periodically (1 second).
  am_hal_ctimer_config_single(3, AM_HAL_CTIMER_TIMERA,
                              AM_HAL_CTIMER_HFRC_12MHZ |
                                  AM_HAL_CTIMER_FN_REPEAT |
                                  AM_HAL_CTIMER_INT_ENABLE);

  am_hal_ctimer_int_enable(AM_HAL_CTIMER_INT_TIMERA3);

  // 750 = 12,000,000 (clock rate) / 16,000 (desired sample rate).
  am_hal_ctimer_period_set(3, AM_HAL_CTIMER_TIMERA, 750, 374);

  // Enable the timer A3 to trigger the ADC directly
  am_hal_ctimer_adc_trigger_enable();

  // Start the timer.
  am_hal_ctimer_start(3, AM_HAL_CTIMER_TIMERA);
}

// Make sure the CPU is running as fast as possible.
void enable_burst_mode(tflite::ErrorReporter* error_reporter) {
  am_hal_burst_avail_e eBurstModeAvailable;
  am_hal_burst_mode_e eBurstMode;

  // Check that the Burst Feature is available.
  if (AM_HAL_STATUS_SUCCESS ==
      am_hal_burst_mode_initialize(&eBurstModeAvailable)) {
    if (AM_HAL_BURST_AVAIL == eBurstModeAvailable) {
      TF_LITE_REPORT_ERROR(error_reporter, "Apollo3 Burst Mode is Available\n");
    } else {
      TF_LITE_REPORT_ERROR(error_reporter,
                           "Apollo3 Burst Mode is Not Available\n");
    }
  } else {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "Failed to Initialize for Burst Mode operation\n");
  }

  // Put the MCU into "Burst" mode.
  if (AM_HAL_STATUS_SUCCESS == am_hal_burst_mode_enable(&eBurstMode)) {
    if (AM_HAL_BURST_MODE == eBurstMode) {
      TF_LITE_REPORT_ERROR(error_reporter,
                           "Apollo3 operating in Burst Mode (96MHz)\n");
    }
  } else {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "Failed to Enable Burst Mode operation\n");
  }
}

}  // namespace

// Interrupt handler for the ADC.
extern "C" void am_adc_isr(void) {
  uint32_t ui32IntMask;

  // Read the interrupt status.
  if (AM_HAL_STATUS_SUCCESS !=
      am_hal_adc_interrupt_status(g_adc_handle, &ui32IntMask, false)) {
    TF_LITE_REPORT_ERROR(g_adc_dma_error_reporter,
                         "Error reading ADC0 interrupt status.");
  }

  // Clear the ADC interrupt.
  if (AM_HAL_STATUS_SUCCESS !=
      am_hal_adc_interrupt_clear(g_adc_handle, ui32IntMask)) {
    TF_LITE_REPORT_ERROR(g_adc_dma_error_reporter,
                         "Error clearing ADC0 interrupt status.");
  }

  // If we got a DMA complete, set the flag.
  if (ui32IntMask & AM_HAL_ADC_INT_DCMP) {
    uint32_t* source_buffer;
    if (g_dma_destination_index == 0) {
      source_buffer = g_ui32ADCSampleBuffer0;
      g_dma_destination_index = 1;
    } else {
      source_buffer = g_ui32ADCSampleBuffer1;
      g_dma_destination_index = 0;
    }
    adc_start_dma(g_adc_dma_error_reporter);

    // For slot 1:
    uint32_t slotCount = 0;
    for (uint32_t indi = 0; indi < kAdcSampleBufferSize; indi++) {
      am_hal_adc_sample_t temp;

      temp.ui32Slot = AM_HAL_ADC_FIFO_SLOT(source_buffer[indi]);
      temp.ui32Sample = AM_HAL_ADC_FIFO_SAMPLE(source_buffer[indi]);

      if (temp.ui32Slot == 1) {
        g_audio_capture_buffer[g_audio_capture_buffer_start] = temp.ui32Sample;
        g_audio_capture_buffer_start =
            (g_audio_capture_buffer_start + 1) % kAudioCaptureBufferSize;
        slotCount++;
      }
    }

    g_total_samples_captured += slotCount;
    g_latest_audio_timestamp =
        (g_total_samples_captured / (kAudioSampleFrequency / 1000));
  }

  // If we got a DMA error, set the flag.
  if (ui32IntMask & AM_HAL_ADC_INT_DERR) {
    g_adc_dma_error = true;
  }
}

TfLiteStatus InitAudioRecording(tflite::ErrorReporter* error_reporter) {
  // Set the clock frequency.
  if (AM_HAL_STATUS_SUCCESS !=
      am_hal_clkgen_control(AM_HAL_CLKGEN_CONTROL_SYSCLK_MAX, 0)) {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "Error - configuring the system clock failed.");
    return kTfLiteError;
  }

  // Set the default cache configuration and enable it.
  if (AM_HAL_STATUS_SUCCESS !=
      am_hal_cachectrl_config(&am_hal_cachectrl_defaults)) {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "Error - configuring the system cache failed.");
    return kTfLiteError;
  }
  if (AM_HAL_STATUS_SUCCESS != am_hal_cachectrl_enable()) {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "Error - enabling the system cache failed.");
    return kTfLiteError;
  }

  // Ensure the CPU is running as fast as possible.
  enable_burst_mode(error_reporter);

  // Start the CTIMER A3 for timer-based ADC measurements.
  init_timerA3_for_ADC();

  // Enable interrupts.
  NVIC_EnableIRQ(ADC_IRQn);
  am_hal_interrupt_master_enable();

  // Edge Board Pin Definitions
  constexpr int kSfEdgePinMic0 = 11;
  const am_hal_gpio_pincfg_t g_sf_edge_pin_mic0 = {
      .uFuncSel = AM_HAL_PIN_11_ADCSE2,
  };
  constexpr int kSfEdgePinMic1 = 29;
  const am_hal_gpio_pincfg_t g_sf_edge_pin_mic1 = {
      .uFuncSel = AM_HAL_PIN_29_ADCSE1,
  };

  // Set pins to act as our ADC input
  am_hal_gpio_pinconfig(kSfEdgePinMic0, g_sf_edge_pin_mic0);
  am_hal_gpio_pinconfig(kSfEdgePinMic1, g_sf_edge_pin_mic1);

  // Configure the ADC
  adc_config0(error_reporter);

  // Trigger the ADC sampling for the first time manually.
  if (AM_HAL_STATUS_SUCCESS != am_hal_adc_sw_trigger(g_adc_handle)) {
    TF_LITE_REPORT_ERROR(error_reporter, "Error - triggering the ADC0 failed.");
    return kTfLiteError;
  }

  // Enable the LED outputs.
  am_hal_gpio_pinconfig(AM_BSP_GPIO_LED_RED, g_AM_HAL_GPIO_OUTPUT_12);
  am_hal_gpio_pinconfig(AM_BSP_GPIO_LED_YELLOW, g_AM_HAL_GPIO_OUTPUT_12);

  am_hal_gpio_output_set(AM_BSP_GPIO_LED_RED);
  am_hal_gpio_output_set(AM_BSP_GPIO_LED_YELLOW);

  return kTfLiteOk;
}

TfLiteStatus GetAudioSamples(tflite::ErrorReporter* error_reporter,
                             int start_ms, int duration_ms,
                             int* audio_samples_size, int16_t** audio_samples) {
  if (!g_is_audio_initialized) {
    TfLiteStatus init_status = InitAudioRecording(error_reporter);
    if (init_status != kTfLiteOk) {
      return init_status;
    }
    g_is_audio_initialized = true;
  }

  // This is the 'zero' level of the microphone when no audio is present, and
  // should be recalibrated if the hardware configuration ever changes. It was
  // generated experimentally by averaging some samples captured on a board.
  const int16_t kAdcSampleDC = 6003;

  // Temporary gain emulation to deal with too-quiet audio on prototype boards.
  const int16_t kAdcSampleGain = 10;

  // This should only be called when the main thread notices that the latest
  // audio sample data timestamp has changed, so that there's new data in the
  // capture ring buffer. The ring buffer will eventually wrap around and
  // overwrite the data, but the assumption is that the main thread is checking
  // often enough and the buffer is large enough that this call will be made
  // before that happens.
  const int start_offset = start_ms * (kAudioSampleFrequency / 1000);
  const int duration_sample_count =
      duration_ms * (kAudioSampleFrequency / 1000);
  for (int i = 0; i < duration_sample_count; ++i) {
    const int capture_index = (start_offset + i) % kAudioCaptureBufferSize;
    const int32_t capture_value = g_audio_capture_buffer[capture_index];
    int32_t output_value = capture_value - kAdcSampleDC;
    output_value *= kAdcSampleGain;
    if (output_value < std::numeric_limits<int16_t>::min()) {
      output_value = std::numeric_limits<int16_t>::min();
    }
    if (output_value > std::numeric_limits<int16_t>::max()) {
      output_value = std::numeric_limits<int16_t>::max();
    }
    g_audio_output_buffer[i] = output_value;
  }

  *audio_samples_size = kMaxAudioSampleSize;
  *audio_samples = g_audio_output_buffer;
  return kTfLiteOk;
}

int32_t LatestAudioTimestamp() { return g_latest_audio_timestamp; }

#endif  // ARDUINO_EXCLUDE_CODE

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#if defined(ARDUINO) && !defined(ARDUINO_SFE_EDGE)
#define ARDUINO_EXCLUDE_CODE
#endif  // defined(ARDUINO) && !defined(ARDUINO_SFE_EDGE)

#ifndef ARDUINO_EXCLUDE_CODE

#include "command_responder.h"

#include "am_bsp.h"

// This implementation will light up the LEDs on the board in response to
// different commands.
void RespondToCommand(tflite::ErrorReporter* error_reporter,
                      int32_t current_time, const char* found_command,
                      uint8_t score, bool is_new_command) {
  static bool is_initialized = false;
  if (!is_initialized) {
    // Setup LED's as outputs
#ifdef AM_BSP_NUM_LEDS
    am_devices_led_array_init(am_bsp_psLEDs, AM_BSP_NUM_LEDS);
    am_devices_led_array_out(am_bsp_psLEDs, AM_BSP_NUM_LEDS, 0x00000000);
#endif
    is_initialized = true;
  }

  // Toggle the blue LED every time an inference is performed.
  am_devices_led_toggle(am_bsp_psLEDs, AM_BSP_LED_BLUE);

  // Turn on LEDs corresponding to the detection for the cycle
  am_devices_led_off(am_bsp_psLEDs, AM_BSP_LED_RED);
  am_devices_led_off(am_bsp_psLEDs, AM_BSP_LED_YELLOW);
  am_devices_led_off(am_bsp_psLEDs, AM_BSP_LED_GREEN);
  if (is_new_command) {
    TF_LITE_REPORT_ERROR(error_reporter, "Heard %s (%d) @%dms", found_command,
                         score, current_time);
    if (found_command[0] == 'y') {
      am_devices_led_on(am_bsp_psLEDs, AM_BSP_LED_YELLOW);
    }
    if (found_command[0] == 'n') {
      am_devices_led_on(am_bsp_psLEDs, AM_BSP_LED_RED);
    }
    if (found_command[0] == 'u') {
      am_devices_led_on(am_bsp_psLEDs, AM_BSP_LED_GREEN);
    }
  }
}

#endif  // ARDUINO_EXCLUDE_CODE

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include "main_functions.h"

// Arduino automatically calls the setup() and loop() functions in a sketch, so
// where other systems need their own main routine in this file, it can be left
// empty.

/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#ifndef TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_AUDIO_PROVIDER_H_
#define TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_AUDIO_PROVIDER_H_

#include "tensorflow/lite/c/common.h"
#include "tensorflow/lite/micro/micro_error_reporter.h"

// This is an abstraction around an audio source like a microphone, and is
// expected to return 16-bit PCM sample data for a given point in time. The
// sample data itself should be used as quickly as possible by the caller, since
// to allow memory optimizations there are no guarantees that the samples won't
// be overwritten by new data in the future. In practice, implementations should
// ensure that there's a reasonable time allowed for clients to access the data
// before any reuse.
// The reference implementation can have no platform-specific dependencies, so
// it just returns an array filled with zeros. For real applications, you should
// ensure there's a specialized implementation that accesses hardware APIs.
TfLiteStatus GetAudioSamples(tflite::ErrorReporter* error_reporter,
                             int start_ms, int duration_ms,
                             int* audio_samples_size, int16_t** audio_samples);

// Returns the time that audio data was last captured in milliseconds. There's
// no contract about what time zero represents, the accuracy, or the granularity
// of the result. Subsequent calls will generally not return a lower value, but
// even that's not guaranteed if there's an overflow wraparound.
// The reference implementation of this function just returns a constantly
// incrementing value for each call, since it would need a non-portable platform
// call to access time information. For real applications, you'll need to write
// your own platform-specific implementation.
int32_t LatestAudioTimestamp();

#endif  // TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_AUDIO_PROVIDER_H_

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

// Provides an interface to take an action based on an audio command.

#ifndef TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_COMMAND_RESPONDER_H_
#define TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_COMMAND_RESPONDER_H_

#include "tensorflow/lite/c/common.h"
#include "tensorflow/lite/micro/micro_error_reporter.h"

// Called every time the results of an audio recognition run are available. The
// human-readable name of any recognized command is in the `found_command`
// argument, `score` has the numerical confidence, and `is_new_command` is set
// if the previous command was different to this one.
void RespondToCommand(tflite::ErrorReporter* error_reporter,
                      int32_t current_time, const char* found_command,
                      uint8_t score, bool is_new_command);

#endif  // TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_COMMAND_RESPONDER_H_

/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include "feature_provider.h"

#include "audio_provider.h"
#include "micro_features_micro_features_generator.h"
#include "micro_features_micro_model_settings.h"

FeatureProvider::FeatureProvider(int feature_size, int8_t* feature_data)
    : feature_size_(feature_size),
      feature_data_(feature_data),
      is_first_run_(true) {
  // Initialize the feature data to default values.
  for (int n = 0; n < feature_size_; ++n) {
    feature_data_[n] = 0;
  }
}

FeatureProvider::~FeatureProvider() {}

TfLiteStatus FeatureProvider::PopulateFeatureData(
    tflite::ErrorReporter* error_reporter, int32_t last_time_in_ms,
    int32_t time_in_ms, int* how_many_new_slices) {
  if (feature_size_ != kFeatureElementCount) {
    TF_LITE_REPORT_ERROR(error_reporter,
                         "Requested feature_data_ size %d doesn't match %d",
                         feature_size_, kFeatureElementCount);
    return kTfLiteError;
  }

  // Quantize the time into steps as long as each window stride, so we can
  // figure out which audio data we need to fetch.
  const int last_step = (last_time_in_ms / kFeatureSliceStrideMs);
  const int current_step = (time_in_ms / kFeatureSliceStrideMs);

  int slices_needed = current_step - last_step;
  // If this is the first call, make sure we don't use any cached information.
  if (is_first_run_) {
    TfLiteStatus init_status = InitializeMicroFeatures(error_reporter);
    if (init_status != kTfLiteOk) {
      return init_status;
    }
    is_first_run_ = false;
    slices_needed = kFeatureSliceCount;
  }
  if (slices_needed > kFeatureSliceCount) {
    slices_needed = kFeatureSliceCount;
  }
  *how_many_new_slices = slices_needed;

  const int slices_to_keep = kFeatureSliceCount - slices_needed;
  const int slices_to_drop = kFeatureSliceCount - slices_to_keep;
  // If we can avoid recalculating some slices, just move the existing data
  // up in the spectrogram, to perform something like this:
  // last time = 80ms          current time = 120ms
  // +-----------+             +-----------+
  // | data@20ms |         --> | data@60ms |
  // +-----------+       --    +-----------+
  // | data@40ms |     --  --> | data@80ms |
  // +-----------+   --  --    +-----------+
  // | data@60ms | --  --      |  <empty>  |
  // +-----------+   --        +-----------+
  // | data@80ms | --          |  <empty>  |
  // +-----------+             +-----------+
  if (slices_to_keep > 0) {
    for (int dest_slice = 0; dest_slice < slices_to_keep; ++dest_slice) {
      int8_t* dest_slice_data =
          feature_data_ + (dest_slice * kFeatureSliceSize);
      const int src_slice = dest_slice + slices_to_drop;
      const int8_t* src_slice_data =
          feature_data_ + (src_slice * kFeatureSliceSize);
      for (int i = 0; i < kFeatureSliceSize; ++i) {
        dest_slice_data[i] = src_slice_data[i];
      }
    }
  }
  // Any slices that need to be filled in with feature data have their
  // appropriate audio data pulled, and features calculated for that slice.
  if (slices_needed > 0) {
    for (int new_slice = slices_to_keep; new_slice < kFeatureSliceCount;
         ++new_slice) {
      const int new_step = (current_step - kFeatureSliceCount + 1) + new_slice;
      const int32_t slice_start_ms = (new_step * kFeatureSliceStrideMs);
      int16_t* audio_samples = nullptr;
      int audio_samples_size = 0;
      // TODO(petewarden): Fix bug that leads to non-zero slice_start_ms
      GetAudioSamples(error_reporter, (slice_start_ms > 0 ? slice_start_ms : 0),
                      kFeatureSliceDurationMs, &audio_samples_size,
                      &audio_samples);
      if (audio_samples_size < kMaxAudioSampleSize) {
        TF_LITE_REPORT_ERROR(error_reporter,
                             "Audio data size %d too small, want %d",
                             audio_samples_size, kMaxAudioSampleSize);
        return kTfLiteError;
      }
      int8_t* new_slice_data = feature_data_ + (new_slice * kFeatureSliceSize);
      size_t num_samples_read;
      TfLiteStatus generate_status = GenerateMicroFeatures(
          error_reporter, audio_samples, audio_samples_size, kFeatureSliceSize,
          new_slice_data, &num_samples_read);
      if (generate_status != kTfLiteOk) {
        return generate_status;
      }
    }
  }
  return kTfLiteOk;
}

/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#ifndef TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_FEATURE_PROVIDER_H_
#define TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_FEATURE_PROVIDER_H_

#include "tensorflow/lite/c/common.h"
#include "tensorflow/lite/micro/micro_error_reporter.h"

// Binds itself to an area of memory intended to hold the input features for an
// audio-recognition neural network model, and fills that data area with the
// features representing the current audio input, for example from a microphone.
// The audio features themselves are a two-dimensional array, made up of
// horizontal slices representing the frequencies at one point in time, stacked
// on top of each other to form a spectrogram showing how those frequencies
// changed over time.
class FeatureProvider {
 public:
  // Create the provider, and bind it to an area of memory. This memory should
  // remain accessible for the lifetime of the provider object, since subsequent
  // calls will fill it with feature data. The provider does no memory
  // management of this data.
  FeatureProvider(int feature_size, int8_t* feature_data);
  ~FeatureProvider();

  // Fills the feature data with information from audio inputs, and returns how
  // many feature slices were updated.
  TfLiteStatus PopulateFeatureData(tflite::ErrorReporter* error_reporter,
                                   int32_t last_time_in_ms, int32_t time_in_ms,
                                   int* how_many_new_slices);

 private:
  int feature_size_;
  int8_t* feature_data_;
  // Make sure we don't try to use cached information if this is the first call
  // into the provider.
  bool is_first_run_;
};

#endif  // TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_FEATURE_PROVIDER_H_

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#ifndef TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MAIN_FUNCTIONS_H_
#define TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MAIN_FUNCTIONS_H_

// Expose a C friendly interface for main functions.
#ifdef __cplusplus
extern "C" {
#endif

// Initializes all data needed for the example. The name is important, and needs
// to be setup() for Arduino compatibility.
void setup();

// Runs one iteration of data gathering and inference. This should be called
// repeatedly from the application code. The name needs to be loop() for Arduino
// compatibility.
void loop();

#ifdef __cplusplus
}
#endif

#endif  // TENSORFLOW_LITE_MICRO_EXAMPLES_MICRO_SPEECH_MAIN_FUNCTIONS_H_

/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include "micro_features_micro_features_generator.h"

#include <cmath>
#include <cstring>

#include "tensorflow/lite/experimental/microfrontend/lib/frontend.h"
#include "tensorflow/lite/experimental/microfrontend/lib/frontend_util.h"
#include "micro_features_micro_model_settings.h"

// Configure FFT to output 16 bit fixed point.
#define FIXED_POINT 16

namespace {

FrontendState g_micro_features_state;
bool g_is_first_time = true;

}  // namespace

TfLiteStatus InitializeMicroFeatures(tflite::ErrorReporter* error_reporter) {
  FrontendConfig config;
  config.window.size_ms = kFeatureSliceDurationMs;
  config.window.step_size_ms = kFeatureSliceStrideMs;
  config.noise_reduction.smoothing_bits = 10;
  config.filterbank.num_channels = kFeatureSliceSize;
  config.filterbank.lower_band_limit = 125.0;
  config.filterbank.upper_band_limit = 7500.0;
  config.noise_reduction.smoothing_bits = 10;
  config.noise_reduction.even_smoothing = 0.025;
  config.noise_reduction.odd_smoothing = 0.06;
  config.noise_reduction.min_signal_remaining = 0.05;
  config.pcan_gain_control.enable_pcan = 1;
  config.pcan_gain_control.strength = 0.95;
  config.pcan_gain_control.offset = 80.0;
  config.pcan_gain_control.gain_bits = 21;
  config.log_scale.enable_log = 1;
  config.log_scale.scale_shift = 6;
  if (!FrontendPopulateState(&config, &g_micro_features_state,
                             kAudioSampleFrequency)) {
    TF_LITE_REPORT_ERROR(error_reporter, "FrontendPopulateState() failed");
    return kTfLiteError;
  }
  g_is_first_time = true;
  return kTfLiteOk;
}

// This is not exposed in any header, and is only used for testing, to ensure
// that the state is correctly set up before generating results.
void SetMicroFeaturesNoiseEstimates(const uint32_t* estimate_presets) {
  for (int i = 0; i < g_micro_features_state.filterbank.num_channels; ++i) {
    g_micro_features_state.noise_reduction.estimate[i] = estimate_presets[i];
  }
}

TfLiteStatus GenerateMicroFeatures(tflite::ErrorReporter* error_reporter,
                                   const int16_t* input, int input_size,
                                   int output_size, int8_t* output,
                                   size_t* num_samples_read) {
  const int16_t* frontend_input;
  if (g_is_first_time) {
    frontend_input = input;
    g_is_first_time = false;
  } else {
    frontend_input = input + 160;
  }
  FrontendOutput frontend_output = FrontendProcessSamples(
      &g_micro_features_state, frontend_input, input_size, num_samples_read);

  for (size_t i = 0; i < frontend_output.size; ++i) {
    // These scaling values are derived from those used in input_data.py in the
    // training pipeline.
    // The feature pipeline outputs 16-bit signed integers in roughly a 0 to 670
    // range. In training, these are then arbitrarily divided by 25.6 to get
    // float values in the rough range of 0.0 to 26.0. This scaling is performed
    // for historical reasons, to match up with the output of other feature
    // generators.
    // The process is then further complicated when we quantize the model. This
    // means we have to scale the 0.0 to 26.0 real values to the -128 to 127
    // signed integer numbers.
    // All this means that to get matching values from our integer feature
    // output into the tensor input, we have to perform:
    // input = (((feature / 25.6) / 26.0) * 256) - 128
    // To simplify this and perform it in 32-bit integer math, we rearrange to:
    // input = (feature * 256) / (25.6 * 26.0) - 128
    constexpr int32_t value_scale = 256;
    constexpr int32_t value_div = static_cast<int32_t>((25.6f * 26.0f) + 0.5f);
    int32_t value =
        ((frontend_output.values[i] * value_scale) + (value_div / 2)) /
        value_div;
    value -= 128;
    if (value < -128) {
      value = -128;
    }
    if (value > 127) {
      value = 127;
    }
    output[i] = value;
  }

  return kTfLiteOk;
}

Credits

Cheng-Yo (Ugo) Tan

1 project • 1 follower

TinyML: Speech Commands Detection

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

1. Introduction

2. Approach

3. Testing Results

Schematics

Schematics

Code

arduino_audio_provider.cpp

micro_features_micro_features_generator.h

micro_features_micro_model_settings.cpp

micro_features_micro_model_settings.h

micro_features_model.cpp

micro_features_model.h

micro_features_no_micro_features_data.cpp

micro_features_no_micro_features_data.h

micro_features_yes_micro_features_data.cpp

micro_features_yes_micro_features_data.h

micro_speech.ino

arduino_command_responder.cpp

recognize_commands.cpp

recognize_commands.h

sparkfun_edge_audio_provider.cpp

sparkfun_edge_command_responder.cpp

arduino_main.cpp

audio_provider.h

command_responder.h

feature_provider.cpp

feature_provider.h

main_functions.h

micro_features_micro_features_generator.cpp

Credits

Cheng-Yo (Ugo) Tan

Comments

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TinyML: Speech Commands Detection

TinyML: Speech Commands Detection

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

1. Introduction

2. Approach

3. Testing Results

Schematics

Schematics

Code

arduino_audio_provider.cpp

micro_features_micro_features_generator.h

micro_features_micro_model_settings.cpp

micro_features_micro_model_settings.h

micro_features_model.cpp

micro_features_model.h

micro_features_no_micro_features_data.cpp

micro_features_no_micro_features_data.h

micro_features_yes_micro_features_data.cpp

micro_features_yes_micro_features_data.h

micro_speech.ino

arduino_command_responder.cpp

recognize_commands.cpp

recognize_commands.h

sparkfun_edge_audio_provider.cpp

sparkfun_edge_command_responder.cpp

arduino_main.cpp

audio_provider.h

command_responder.h

feature_provider.cpp

feature_provider.h

main_functions.h

micro_features_micro_features_generator.cpp

Credits

Cheng-Yo (Ugo) Tan

Comments

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