void setup() {
  pinMode(13, OUTPUT);
  pinMode(22, OUTPUT);
  pinMode(2, INPUT);
  pinMode(0, INPUT);
  Serial.begin(9600);
}

void loop() {
  int sensor1 = digitalRead(2);
  int sensor2 = digitalRead(0);
  int stu=0
  
  if (sensor1 == HIGH || sensor2 == HIGH) {
    digitalWrite(13, HIGH);
    delay(500);
    if (sensor1 == HIGH && sensor2 == LOW) {
      Serial.println("Visitor Entered");
    } else if (sensor1 == LOW && sensor2 == HIGH) {
      Serial.println("Visitor Exited");
    }
    while (digitalRead(2) == HIGH || digitalRead(0) == HIGH);
    digitalWrite(13, LOW);
    delay(500);
  } else {
    digitalWrite(13, LOW);
  }
}