const int ledPin = 13;
const int buttonPin = 2;

int button = 0;

void setup(){
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP);

}

void loop() {
  int buttonState = digitalRead(buttonPin);

  if (buttonState == HIGH){
    digitalWrite(ledPin, LOW);
  }
  else {
    digitalWrite(ledPin, HIGH);
  }
}