In mathematics, we call **magic square**, a square of numbers whose sum of rows,
columns and diagonals is equal to the same number. The goal of this game is to find the missing number so that the square is magic.
It is an excellent exercise in **mental arithmetic** training.

The principle of the magic squares game is simple, just complete the table proposed in a limited time.

If you can not find the correct answer to the magic squares game, or if your proposal is incorrect, the solution will be given to you.