const int RED_PIN = 9;
const int YELLOW_PIN = 10;
const int GREEN_PIN = 11;

void setup() {
  pinMode(RED_PIN, OUTPUT);
  pinMode(YELLOW_PIN, OUTPUT);
  pinMode(GREEN_PIN, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  digitalWrite(RED_PIN, HIGH);
  delay(1000);
  digitalWrite(RED_PIN, LOW);

  digitalWrite(YELLOW_PIN, HIGH);
  delay(200);
  digitalWrite(YELLOW_PIN, LOW);

  digitalWrite(GREEN_PIN, HIGH);
  delay(1000);
  digitalWrite(GREEN_PIN, LOW);

  for (int i = 0; i < 3; i++) {
    delay(200);
    digitalWrite(GREEN_PIN, HIGH);
    delay(200);
    digitalWrite(GREEN_PIN, LOW);
  }
}