int r1=2;
int y1=3;
int g1=4;
int r2=5;
int y2=6;
int g2=7;
int r3=8;
int y3=9;
int g3=10;
int r4=11;
int y4=12;
int g4=13;
void setup() {
  // put your setup code here, to run once:
pinMode(r1, OUTPUT);
pinMode(y1, OUTPUT);
pinMode(g1, OUTPUT);
pinMode(r2, OUTPUT);
pinMode(y2, OUTPUT);
pinMode(g2, OUTPUT);
pinMode(r3, OUTPUT);
pinMode(y3, OUTPUT);
pinMode(g3, OUTPUT);
pinMode(r4, OUTPUT);
pinMode(y4, OUTPUT);
pinMode(g4, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(r1, HIGH);
digitalWrite(y1, LOW);
digitalWrite(g1, LOW);
digitalWrite(r2, LOW);
digitalWrite(y2, LOW);
digitalWrite(g2, HIGH);
digitalWrite(r3, HIGH);
digitalWrite(y3, LOW);
digitalWrite(g3, LOW);
digitalWrite(r4, LOW);
digitalWrite(y4, LOW);
digitalWrite(g4, HIGH);

delay(14000);


digitalWrite(y1, HIGH);

digitalWrite(y2, HIGH);

digitalWrite(y3, HIGH);

digitalWrite(y4, HIGH);


delay(8000);

digitalWrite(r1, LOW);
digitalWrite(y1, LOW);
digitalWrite(g1, HIGH);
digitalWrite(r2, HIGH);
digitalWrite(y2, LOW);
digitalWrite(g2, LOW);
digitalWrite(r3, LOW);
digitalWrite(y3, LOW);
digitalWrite(g3, HIGH);
digitalWrite(r4, HIGH);
digitalWrite(y4, LOW);
digitalWrite(g4, LOW);

delay(14000);


digitalWrite(y1, HIGH);

digitalWrite(y2, HIGH);
digitalWrite(y3, HIGH);

digitalWrite(y4, HIGH);


delay(8000);

}