const int BUTTON = 13;
const int LED = 12;

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);
  }
  
}