void setup() {
  // put your setup code here, to run once:
pinMode(13, OUTPUT);
pinMode(2, INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run repeatedly:
 int push = analogRead(2);
 if (push == 1) {
  digitalWrite(13, LOW);
 } else {
  digitalWrite(13,HIGH);
 }
}