void setup()
{
	pinMode(18, OUTPUT);
	pinMode(23, OUTPUT);
	pinMode(19, OUTPUT);
	pinMode(5, INPUT);
}

void loop()
{
	digitalWrite(23, HIGH);
	digitalWrite(19, HIGH);
	digitalWrite(18, LOW);
	if (digitalRead(5)==HIGH){
		digitalWrite(23, LOW);
		digitalWrite(19, LOW);
		digitalWrite(18, HIGH);
		delay(2000);
	}
	delay(50);
}