void setup() {
  pinMode(2, INPUT);
  pinMode(13, OUTPUT);
}

void loop() {
  // Read the state of the switch
  int switchState = digitalRead(2);

  if (switchState == HIGH) {
    // Switch is ON, blink the LED
    digitalWrite(13, HIGH);
    delay(5000);
    digitalWrite(13, LOW);
    delay(5000);
    
  } else {
    // Switch is OFF, keep the LED off
    digitalWrite(13, LOW);
  }
}