I think four people are good. Generally, four people are a small group, and eight people may be four small groups. Why do I say that? Imagine a scene where everyone quarrels and the dormitory of four people will think like this. Oh, forget it, make up. After all, our lives are so closely linked that people's tolerance has expanded at this time. And the dormitory of eight people will think like this. If you have a bad temper, who will spoil you? Don't be friends with you. I can be friends with others. At this time, the tolerance will be reduced.