Xiao Ni: Isn't there a big country that can do magic? Xiao Ni didn't match. Maybe Ni's name is too long, maybe it's too patriotic. Actually, this is a mathematical problem, and the principle is very simple, just

Xiao Ni: Isn't there anyone who can do magic in a big country?

Xiao Ni didn't match.

Maybe Ni's name is too long, maybe it's too patriotic.

In fact, this is a mathematical problem, the principle is very simple, but it is a bit difficult to find and apply.

Although it is just a math game, Master Liu's mathematical talent is really not something that ordinary people can learn. There is also a certain skill in shuffling the cards after tearing, and the first and last two must be the same.