The senior high school entrance examination depends on a usual accumulation. If you can't do the problem, you must have done less. I did more than 200 papers in the senior high school entrance examination to get full marks, hehe, but I am good at Olympics, and I may be a little talented. You can't do that kind of problem. Tell me in detail.

Mathematics is the concept of life and death, death-death, and the method of life-living.

Note: don't be too tired these days, or you won't be able to play your best.