uout

Enter the numbers from 1 to 16 in any order, separated by spaces:

 16  3  2 13
  5 10 11  8
  9  6  7 12
  4 15 14  1

Row sums: 34 34 34 34
Column sums: 34 34 34 34
Diagonal sums: 34 34

The matrix is a magic square