int openPin   = A0;
int openDoor  = 1;
int openedLed = 2;

int closePin  = A1;
int closeDoor = 3;
int closedLed = 4;

int blinkPin = A2;
int blinkLed =  5;

void setup(){

  pinMode(openPin, INPUT_PULLUP);
  pinMode(openDoor,      OUTPUT);
  pinMode(openedLed,     OUTPUT);

  pinMode(closePin, INPUT_PULLUP);
  pinMode(closeDoor, OUTPUT);
  pinMode(closedLed, OUTPUT);

  pinMode(blinkPin, INPUT_PULLUP);
  pinMode(blinkLed, OUTPUT);

  pinMode(A3, INPUT_PULLUP);
  pinMode(6, OUTPUT);

}
void loop() {
  //task OPEN DOOR:
  int openedDoor = digitalRead(openPin);
  
  if(openedDoor == 0){
    digitalWrite(closedLed, LOW);
    digitalWrite(openDoor,  HIGH);
    delay(999);
    digitalWrite(openedLed, HIGH);
  }
  else{
    digitalWrite(openDoor,   LOW);
  }

  //task CLOSE DOOR:
  int closedDoor = digitalRead(closePin);
  
  if(closedDoor == 0){
    digitalWrite(openedLed, LOW);
    digitalWrite(closeDoor, HIGH);
    delay(999);

    digitalWrite(closedLed, HIGH);

  }
  else{
    digitalWrite(closeDoor, LOW);
  }

  //task BLINK LED:
  int blinkedLed = digitalRead(blinkPin);

  if(blinkedLed == 0){
    digitalWrite(blinkLed, HIGH);
    delay(219);
    digitalWrite(blinkLed, LOW);
    delay(479);
    digitalWrite(blinkLed, HIGH);
    delay(219);
    digitalWrite(blinkLed, LOW);
    delay(479);
    digitalWrite(blinkLed, HIGH);
    delay(219);
    digitalWrite(blinkLed, LOW);
    delay(479);

    digitalWrite(blinkLed, HIGH);
    delay(99);
    digitalWrite(blinkLed, LOW);
    delay(119);
    digitalWrite(blinkLed, HIGH);
    delay(99);
    digitalWrite(blinkLed, LOW);
    delay(119);
    digitalWrite(blinkLed, HIGH);
    delay(99);
    digitalWrite(blinkLed, LOW);
    delay(119);

    digitalWrite(blinkLed, HIGH);
    delay(2799);
  }
  else{
    digitalWrite(blinkLed, LOW);
  }
  //task GLASS OFF
  int glassOff = digitalRead(A3);
  if(glassOff == 0){
    digitalWrite(6, HIGH);
  }
  else{
    digitalWrite(6, LOW);
  }

}