The meaning of the four-digit room number of the hotel is as follows:

* If the hotel has no more than ten floors, the first two digits of the four-digit number are usually meaningless.

* If the hotel has more than ten floors, the first two digits of the four-digit number are floors and the last two digits are rooms.

in addition, hotels usually number buildings, such as building 1 and building 2, for easy management and identification.