int SwitchState=0;
void setup() {
pinMode(9,INPUT);  //switch
pinMode(8,OUTPUT);  //redlight
pinMode(7,OUTPUT);  //redlight
pinMode(6,OUTPUT);  //greenlight
}
void loop() {
SwitchState = digitalRead(9);
if (SwitchState ==LOW) {   // if the switch is off
digitalWrite(6, HIGH);  // saying if switch isnt touched, green is on
digitalWrite(7, LOW);
digitalWrite(6, LOW);
}
else{
digitalWrite(6, LOW);
digitalWrite(7, HIGH);
digitalWrite(8, LOW);
delay(250);
digitalWrite(7, LOW);
digitalWrite(8, HIGH);
delay(250);
}
}