Personally, I think a math book by Li Yongle can be done at least twice if it is done thoroughly ~ I didn't have time at that time, so I did it twice and finally got 125. Of course, if there is no carelessness, 140 should be no problem, because the papers at that time were for the plenary session. Therefore, personally, I think the whole book is ok. Don't bite off more than you can chew. The key is to make sure that everything you do is right!