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