const int BUTTON = 2;
const int LED = 3;
int BUTTONstate = 0;

void  setup()
{
  pinMode(BUTTON, INPUT);
  pinMode(LED, OUTPUT);
}

void  loop()
{
  // BUTTONstate = digitalRead(BUTTON);
  // if (BUTTONstate == HIGH)
  // {
  //   digitalWrite(LED, HIGH);
  // } 
  // else{
  //   digitalWrite(LED,  LOW);
  // }

  if(digitalRead(BUTTON) == HIGH){
    digitalWrite(LED, HIGH);
  }else{
    digitalWrite(LED, LOW);
  }
}