1
0 0 2 4 0 5 8 0 0
0 4 1 8 0 0 0 2 0
6 0 0 0 7 0 0 3 9
2 0 0 0 3 0 0 9 6
0 0 9 6 0 7 1 0 0
1 7 0 0 5 0 0 0 3
9 6 0 0 8 0 0 0 1
0 2 0 0 0 9 5 6 0
0 0 8 3 0 6 9 0 0