void setup() {
  pinMode(2, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(7, INPUT_PULLUP);
  pinMode(8, INPUT_PULLUP);
  pinMode(12, INPUT_PULLUP);  // put your setup code here, to run once:
 
}
 
void loop() {
  if (digitalRead(7) == false) {
    digitalWrite(2, HIGH); 
    digitalWrite(4, HIGH);
  }
  else {
    digitalWrite(2, LOW); 
    digitalWrite(4, LOW);
  }
  if (digitalRead(8) == false) {
    digitalWrite(2, HIGH); 
  }
  else {
    digitalWrite(2, LOW);
  }
    if (digitalRead(12) == false) {
    digitalWrite(4, HIGH);
  }
  else {
    digitalWrite(4, LOW);
  }
  }