int rled=12, yled=14, gled=13, Rled=21, Yled=19, Gled=18;


void setup() {
  // put your setup code here, to run once:
  pinMode(rled, OUTPUT);
  pinMode(yled, OUTPUT);
  pinMode(gled, OUTPUT);
  pinMode(Rled, OUTPUT);
  pinMode(Yled, OUTPUT);
  pinMode(Gled, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(rled, HIGH);
  digitalWrite(Gled, HIGH);
  delay(10000);
  digitalWrite(yled, HIGH);
  delay(2000);
  digitalWrite(Yled, HIGH);
  digitalWrite(Gled, LOW);
  delay(2000);
  digitalWrite(rled, LOW);
  digitalWrite(yled, LOW);
  digitalWrite(Yled, LOW);
  digitalWrite(Rled, HIGH);
  digitalWrite(gled, HIGH);
  delay(10000);
  digitalWrite(Yled, HIGH);
  delay(2000);
  digitalWrite(yled, HIGH);
  digitalWrite(gled, LOW);
  delay(2000);
  digitalWrite(Rled, LOW);
  digitalWrite(yled, LOW);
  digitalWrite(Yled, LOW);
  

  
}