34+47+52-30-25-36+ (A, B and C)
=42+ (Party A, Party B and Party C borrow books)
A、B、30 A、C、25 B、C、36
Then A, B and C can borrow 25 books at most.
So at least one person has borrowed books, at most:
42+25=67 copies
So there are no books borrowed, at least:
100-67=33 copies
When did the real song about the origin of Zheng begin? According to the records of Zheng's genealogy, in the thirty-sixth year of his reign, he was named Earl, an