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