int buttonState=0;

void setup() {
  pinMode(2, INPUT_PULLUP);
  pinMode(4, INPUT_PULLUP);
  pinMode(7, INPUT_PULLUP);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10,OUTPUT);

}

void loop() {
  buttonState=digitalRead(2);
  
  if(buttonState==HIGH){
    digitalWrite(9, LOW);
  }else{
    digitalWrite(9,HIGH);
  }


  buttonState=digitalRead(4);
  
  if(buttonState==HIGH){
    digitalWrite(10, LOW);
  }else{
    digitalWrite(10,HIGH);
  }


  buttonState=digitalRead(7);
  
  if(buttonState==HIGH){
    digitalWrite(8, LOW);
  }else{
    digitalWrite(8,HIGH);
  }

}