Task 6. We increase numbers in a square In each cage of a square 3×3 zero was written. For the course it is possible to choose a square 2×2 and to add on unit to four numbers in it. After several such operations it turned out that the central number is equal in a square to 62. What is the sum of all nine numbers equal in a square 3×3 to?

On each course the central number increases by 1, and the sum of all numbers increases by 4 (it is impossible to choose a square 2x2 so that the central cage was not chosen). As in the central cage it is written 62, 62 times added units, and the sum of all numbers is equal to 62 * 4 = 248
Answer add