Ask a question: Is it 10 1 or 102 on the right hand side of the family building?

My understanding: if there are several units in the family building, when people enter the unit door from the outside, it should generally be a single number on the left hand side and a double number on the right hand side, and the unit 1 of the whole building is also placed in the first door on the left; If the doors of the first unit are arranged from right to left, then when entering a unit, the right side is single row and the left side is double row. This may happen, but it is definitely a minority. This topic is very interesting. You can't say who is right or wrong. The law does not stipulate, but it should be left-handed and right-handed. For example, a building with a number of 5 has four units, and the first floor convention is: 5-10/,5- 102, 5- 103, 5- 104, 5-/kloc-0. It can also be expressed as: 5-1-1,5- 1- 102, 5-2- 103, 5-2-1. It can also be expressed as: 5-1-1,5-1-1,5-2-10/,5-2-/. At this point, the landlord's answer should be solved, which can be clear and can be calculated according to the neighbors.