class Hotel {
public int bookings;
public void book() {
bookings++;
}
}

public class SuperHotel extends Hotel {
public void book() {
bookings--;
}

public void book(int size) {
book();
super.book();
bookings += size;
}

public static void main(String args[]) {
Hotel hotel = new Hotel();
hotel.book(2);
System.out.print(hotel.bookings);
}
}