Give you the simplest algorithm:

10+112 squared = 13+14 (do not believe you).

And the square of10+11+12 =365.

In other words, the square of 65438+03+the square of 65438 +04 =365.

So, (365+365)/365=2.

This picture was painted by Russian painter belinsky, and this problem was written by Russian mathematician Ladinszky. The purpose of painting this picture is to inspire students to carefully examine some properties of numbers and use skills to solve arithmetic and all other difficult problems, not only to get problems, but also to have wisdom.