int red = 11;
int yellow =12;
int green = 13;

void setup() {
  
  pinMode(red, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);
}

void loop() {
  digitalWrite(red,HIGH);
  digitalWrite(yellow,LOW);
  digitalWrite(green,LOW);
  delay(1500);
  digitalWrite(red,LOW);
  digitalWrite(yellow,HIGH);
  digitalWrite(green,LOW);
  delay(500);
  digitalWrite(red,LOW);
  digitalWrite(yellow,LOW);
  digitalWrite(green,HIGH);
  delay(5000);
  digitalWrite(red,LOW);
  digitalWrite(yellow,LOW);
  digitalWrite(green,LOW);
  delay(2000);
  digitalWrite(red,HIGH);
  digitalWrite(yellow,HIGH);
  digitalWrite(green,HIGH);
  delay(1000);
  // put your main code here, to run repeatedly:

}