int GreenSwitch=0;

void setup() {
pinMode(11, INPUT); //green light
digitalWrite(11, LOW);
pinMode(10, INPUT); //yellow light
digitalWrite(10, LOW);
pinMode(9, INPUT); //red light
    digitalWrite(9, LOW);
}
void loop(){
int GreenSwitch = digitalRead(11);
while(digitalRead(3) ==HIGH)
{
  tone(10,290);
}
if (GreenSwitch ==LOW) {
  digitalWrite(8, LOW);
  digitalWrite(7, LOW);
  digitalWrite(6, LOW);
  digitalWrite(5, LOW);
  digitalWrite(4,LOW);
  digitalWrite(3, LOW);
}
else{
  digitalWrite(8, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(6, LOW);
  digitalWrite(5, LOW);
  digitalWrite(4,LOW);
  digitalWrite(3, LOW);
  delay(1000);
    digitalWrite(8, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(4,LOW);
  digitalWrite(3, LOW);
  delay(1000);
    digitalWrite(8, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(4,HIGH);
  digitalWrite(3, HIGH);
}
}