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