const int pin1=1;
const int pin2=2;
const int pin3=3;
const int pin4=4;

const int pin13=13;
void setup() {

  // put your setup code here, to run once:
pinMode(pin1, OUTPUT);
pinMode(pin2, OUTPUT);
pinMode(pin13, INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run repeatedly:
if (digitalRead(pin13)==LOW)
digitalWrite(pin1, LOW);
digitalWrite(pin2, LOW);
delay(600);
digitalWrite(pin1, HIGH);
digitalWrite(pin2, HIGH);
delay(100);




}