void setup() {
  //put your set up code here, to run once:
  pinMode(2, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(2, HIGH);
  delay(400);
  digitalWrite(2, LOW);
  delay(200);
  digitalWrite(6, HIGH);
  delay(400);
  digitalWrite(6, LOW);
  delay(200);
}