int LEDred= 11;
int LEDyellow= 10;
int LEDgreen= 9;

void setup() {
  // put your setup code here, to run once:
pinMode(LEDred, OUTPUT);
pinMode(LEDyellow, OUTPUT);
pinMode(LEDgreen, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(LEDred, HIGH);
delay(3000);
digitalWrite(LEDred, LOW);
delay(200);
digitalWrite(LEDyellow, HIGH);
delay(3000);
digitalWrite(LEDyellow, LOW);
delay(200);
digitalWrite(LEDgreen, HIGH);
delay(3000);
digitalWrite(LEDgreen, LOW);
delay(200);
digitalWrite(LEDyellow, HIGH);
delay(1000);
digitalWrite(LEDyellow, LOW);
delay(200);
}