15 72 7
1 1 1 1 1 7 6 3 4 6 6 3 7 7 2 5 3 6 7 1 2 7 3 3 5 7 7 1 5 2 5 4 4 6 1 4 2 1 7 7 7 3 6 5 7 6 7 6 6 1 2 5 3 7 1 3 3 7 2 7 6 5 5 2 3 3 1 5 5 1 5 5
0 1 0 0 0 0 0 0 0 0 0 0 7 0 0
0 0 6 3 0 0 0 0 0 0 7 0 0 0 0
0 0 7 5 7 0 5 0 7 5 5 0 0 0 0
0 0 5 0 0 0 0 4 0 0 0 1 0 0 0
0 0 5 0 1 0 0 0 7 0 1 7 0 7 5
0 3 0 0 7 0 7 2 0 0 0 0 0 2 0
0 0 4 0 0 0 0 0 0 0 0 0 0 7 7
5 0 6 0 0 0 0 0 0 6 3 0 0 0 0
2 6 0 3 0 0 0 0 0 0 4 2 0 0 0
0 0 0 0 3 2 6 0 7 3 0 0 0 3 0
3 0 0 1 1 0 0 0 3 0 0 0 0 0 5
0 0 0 0 0 0 0 0 0 0 6 6 0 5 0
0 2 0 0 0 3 5 0 0 0 0 0 0 1 2
0 6 5 0 0 0 0 0 6 0 7 0 4 0 3
0 0 7 0 0 0 0 0 1 6 0 0 0 0 0
