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