 20 17 8
1 0 0 0 0 0 1 1 0 0 1 0 0 0 0 1 0 1 1 1
 11 12 17
 3 17 18
 6 8 9
 15 17 20
 2 7 12
 3 9 20
 12 17 20
 2 14 19
 10 13 19
 2 14 16
 4 13 20
 1 2 17
 8 14 15
 6 15 20
 10 12 16
 3 10 18
 5 17 19
