#define r1 11
#define r2 4
#define y1 12
#define y2 3
#define g1 13
#define g2 2
void setup() {
  // put your setup code here, to run once:
  pinMode(r1, OUTPUT);
  pinMode(r2, OUTPUT);
  pinMode(y1, OUTPUT);
  pinMode(y2, OUTPUT);
  pinMode(g1, OUTPUT);
  pinMode(g2, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
    digitalWrite(g1, HIGH);
    digitalWrite(r2, HIGH);
    delay(2000);
    digitalWrite(g1, LOW);
    delay(1000);
    digitalWrite(y1, HIGH);
    delay(2000);
    digitalWrite(y1, LOW);
    delay(1000);
    digitalWrite(r1, HIGH);
    digitalWrite(r2, LOW);
  
    digitalWrite(r1,HIGH);
    digitalWrite(g2, HIGH);
    delay(1000);
    digitalWrite(g2, LOW);
    delay(1000);
    digitalWrite(y2, HIGH);
    delay(1000);
    digitalWrite(y2, LOW);
    digitalWrite(r1, LOW);
    digitalWrite(r2, LOW);
    delay(1000);
    digitalWrite(g1, HIGH);
    digitalWrite(r2, LOW);
  
}