Room numbers are unique identifiers assigned to individual rooms within a building, such as hotels, hospitals, or schools. They help people locate specific rooms easily and efficiently. Typically, room numbers consist of a combination of digits, and sometimes letters, indicating the floor and the room's position on that floor. In many buildings, the numbering system follows a logical pattern. For example, in a hotel, rooms on the first floor might be numbered 101, 102, and so on, while the second floor starts with 201. This system allows guests and staff to navigate the building without confusion, enhancing overall organization and accessibility.