int r1 =4;
int yy1 =3;
int g1 =2;

int r2 =8;
int yy2 =9;
int g2 =10;

void setup() {
  // put your setup code here, to run once:
pinMode(r1, OUTPUT);
pinMode(yy1, OUTPUT);
pinMode(g1, OUTPUT);
pinMode(r2, OUTPUT);
pinMode(yy2, OUTPUT);
pinMode(g2, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(g1, LOW);
digitalWrite(yy1, LOW);
digitalWrite(r1, HIGH);
digitalWrite(g2, HIGH);
digitalWrite(yy2, LOW);
digitalWrite(r2, LOW);
delay(5000);

//flash
for(int i=0;i<5;i++){
  digitalWrite(g2, HIGH);
  digitalWrite(yy1, HIGH);
  digitalWrite(yy1, HIGH);
  delay(200);
  digitalWrite(yy1, LOW);
  digitalWrite(yy2, LOW);
  digitalWrite(g2, LOW);
  delay(200);
}

//turn
digitalWrite(g1, HIGH);
digitalWrite(yy1, LOW);
digitalWrite(r1, LOW);
digitalWrite(g2, LOW);
digitalWrite(yy2, LOW);
digitalWrite(r2, HIGH);
delay(5000);

//flash
for(int i=0;i<5;i++){
  digitalWrite(g1, HIGH);
  digitalWrite(yy1, HIGH);
  digitalWrite(yy1, HIGH);
  delay(200);
  digitalWrite(yy1, LOW);
  digitalWrite(yy2, LOW);
  digitalWrite(g1, LOW);
  delay(200);
  }
}