int animationSpeed;
int animationSpeed2;
int animationSpeed3;

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

void loop() {
  // put your main code here, to run repeatedly:
animationSpeed = 4000;
animationSpeed2 = 4000;
animationSpeed3 = 4000;

digitalWrite(13, HIGH); // turn the red led ON
delay(animationSpeed);

digitalWrite(13, LOW); // turn the red led OFF 
delay(1000);

digitalWrite(12, HIGH); //  trun the yellow led ON
delay(animationSpeed2);

digitalWrite(12, LOW); //  turn the yellow led OFF 
delay(1000);

digitalWrite(11, HIGH);// turn the green led ON 
delay(animationSpeed3);

digitalWrite(11, LOW); // trun the gree led OFF
delay(1000);
}