 12 10 4
1 0 1 0 1 0 0 0 0 1 0 0
 3 4 6
 1 2 12
 6 7 10
 2 3 7
 2 3 9
 1 4 12
 1 6 9
 2 10 11
 1 8 11
 2 5 12
