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