1
8 8
 2 0 0 0 0 0 1 0
 0 2 -1 0 -1 1 0 1
 0 -1 2 1 0 0 0 -1
 0 0 1 2 0 0 1 -1
 0 -1 0 0 2 -1 1 -1
 0 1 0 0 -1 2 0 0
 1 0 0 1 1 0 2 -1
 0 1 -1 -1 -1 0 -1 2
