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