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