int ledpin = 13;
int inputpin = 5;
int BUTTON = 0;
void setup() {
  pinMode(ledpin, OUTPUT );
  pinMode(inputpin, INPUT);


}

void loop() {
  BUTTON = digitalread(inputpin);
   if (BUTTON == HIGH);{
    digitalWrite(ledpin, LOW);

   }
else{
  digitalWrite(ledpin, HIGH);
  
}

}