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