void setup() {
  // put your setup code here, to run once:
  pinMode(10, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(2, OUTPUT);
}
void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(10, HIGH);
  digitalWrite(2, HIGH);
  delay(1000);

  turnAllLightsOff();
  delay(1000);
}
void turnAllLightsOff()
{
  digitalWrite(10, LOW);
  digitalWrite(6, LOW);
  digitalWrite(2, LOW);
}