Of course not. I am generally in the top five in mathematics in our school, but I brush fewer questions than others. Usually, I want to think more. It is enough to do one or two problems that can be seen at a glance. If you can't, think more and exercise your own thinking, don't brush the questions blindly, sleep more, and think about questionable questions while sleeping. At this time, my thinking tends to be clearer. You know my ceiling without brushing strange questions. One last question.