#define CENTER_LED 8
#define DOOR_LEDS 6
#define MAIN_LEDS 5

void setup() {
  pinMode(CENTER_LED, OUTPUT);
  pinMode(DOOR_LEDS, OUTPUT);
  pinMode(MAIN_LEDS, OUTPUT);
}

void loop() {
  digitalWrite(CENTER_LED, HIGH);
  digitalWrite(DOOR_LEDS, HIGH);
  digitalWrite(MAIN_LEDS, HIGH);
  delay(1000);

  digitalWrite(CENTER_LED, LOW);
  digitalWrite(DOOR_LEDS, LOW);
  digitalWrite(MAIN_LEDS, LOW);
  delay(1000);
}