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