In school life, we first step in life in some educational platform. Also, there we connect with many people like teachers, classmates, friends, etc. The most interesting thing in school is during the exam, as you said, we are divided into two groups, A and B, for the exam. Before studying and writing questions to each other on the exam day. Ha ha ha 🥰It almost happens in everyone's life, in exchange for friendship with each other in school life, on the day of the exam, you can ask each other the answers to the questions and take the exam. Best wishes to you.