0
1 1 9 9 0 0
1 0 0 9 9 9 2 0 1
0 0 9 9 2 0
3 0 3 9 9 9 1 2 1
0 2 9 9 1 2
9 9 0 3 9 9
9 9 9 2 2 1 9 9 9
9 9 0 0 9 9
9 9 9 0 3 1 2 9 9
9 9 0 2 9 9
0 2 9 9 0 2
0 0 1 9 9 9 0 0 0
0 1 9 9 1 0
0 1 1 9 9 9 4 1 2
1 1 9 9 2 1
