You are a student of S Middle School. Before you return to school, an anonymous person posted a bunch of rules on WeChat. You feel it is inexplicable and strange, but you know that if you want to survive, you must abide by the rules, so you embark on the road back to school.
Rule 1: You are a student in Class 4 of S Middle School, and you will return to school tonight.
Rule 2: There are only forty people in your class. It is absolutely impossible to have a few or more people.
Rule 3: Both the head teacher and the subject teacher are good, but they are not absolute.
Rule 4: Please maintain a good relationship with your classmates. If the relationship is too bad, you will die. …
After the rules are announced, can Xiao Li survive?
