In the grid below, there is a 4 x 4 block where each column, row, and long diagonal adds up to 34.
Enter the coordinates of the top-left square of that block.
0 16 3 2 13 15 10 3 6 41 15 14 4 12 8 7 1 12
1 5 10 22 8 4 5 16 7 9 7 6 12 5 11 10 8 5
2 9 6 7 12 14 11 2 13 16 3 2 13 15 10 3 6 5
3 41 15 14 4 12 8 7 2 5 10 11 8 4 5 16 9 15
4 16 3 2 13 15 10 3 6 15 10 16 2 3 13 16 2 3
5 5 10 11 8 4 5 16 9 4 5 5 11 10 8 5 11 10
6 9 6 7 12 14 11 2 13 14 11 9 7 6 12 9 7 6
7 41 15 14 4 12 8 7 1 12 8 4 14 15 1 14 15 1
8 9 7 6 12 5 11 10 8 5 11 10 3 6 41 15 14 4
9 4 14 15 1 9 7 6 12 9 7 5 16 9 9 7 6 12
10 12 8 13 13 4 14 15 1 4 14 11 2 13 16 3 2 13
x,y 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


X =    Y =   

23