LED Blink back to back

void setup() {
  // put your setup code here, to run once:
pinMode(10,OUTPUT);
pinMode(12,OUTPUT);
pinMode(13,OUTPUT);
pinMode(11,OUTPUT);
pinMode(10,OUTPUT);
pinMode(9,OUTPUT);
pinMode(8,OUTPUT);
pinMode(7,OUTPUT);
pinMode(6,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(13,2);
delay(2000);
digitalWrite(13,0);
delay(1500);
digitalWrite(12,2);
delay(2000);
digitalWrite(12,0);
delay(1500);
digitalWrite(11,2);
delay(2000);
digitalWrite(11,0);
delay(1500);
digitalWrite(10,2);
delay(2000);
digitalWrite(10,0);
delay(1500);
digitalWrite(9,2);
delay(2000);
digitalWrite(9,0);
delay(1500);
  digitalWrite(8,2);
delay(2000);
digitalWrite(8,0);
delay(1500);
  digitalWrite(7,2);
delay(2000);
digitalWrite(7,0);
delay(1500);
  digitalWrite(6,2);
delay(2000);
digitalWrite(6,0);
delay(1500);
  digitalWrite(6,2);
delay(2000);
digitalWrite(6,0);
delay(1500);
digitalWrite(7,2);
delay(2000);
digitalWrite(7,0);
delay(1500);
digitalWrite(8,2);
delay(2000);
digitalWrite(8,0);
delay(1500);
digitalWrite(9,2);
delay(2000);
digitalWrite(9,0);
delay(1500);
digitalWrite(10,2);
delay(2000);
digitalWrite(10,0);
delay(1500);
  digitalWrite(11,2);
delay(2000);
digitalWrite(11,0);
delay(1500);
  digitalWrite(12,2);
delay(2000);
digitalWrite(12,0);
delay(1500);
  digitalWrite(13,2);
delay(2000);
digitalWrite(13,0);
delay(1500);
}