A calender's page is cut in such a way that the cut piece is a square and it has 16 numbers on it.

A calender's page is cut in such a way that the cut piece is a square and it has 16 numbers on it. if the summation of the numbers is divisible by 17, what will the summation of the numbers placed on the diagonal of the square? usually in a calender, a month is printed with 7 numbers maximum in a row.