int red = 13;
int yellow = 12;
int green = 11;
void setup() {
  Serial.begin(9600);
  pinMode(red, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);
  
}

void loop() {
  digitalWrite(red, HIGH);
  delay(2000);
  digitalWrite(red, LOW);
  delay(1000);
  digitalWrite(yellow, HIGH);
  delay(500);
  digitalWrite(yellow, LOW);
  delay(500);
  digitalWrite(green, HIGH);
  delay(1500);
  digitalWrite(green, LOW);
  delay(1000);
  Serial.println("STOP");
}