int led1 = 12;
void setup() {
  pinMode(led1, OUTPUT);
  pinMode(4, INPUT_PULLUP);
 pinMode(5, INPUT_PULLUP);
}

void loop() {
if(digitalRead(4)== LOW){
  digitalWrite(led1, HIGH);
}
if(digitalRead(5)== LOW){
  digitalWrite(led1, LOW);
}
}