1, 19 3 a d 0 0 1 0 0 1 1;
2, 21 3 a b 0 0 1 0 1 0 1;
3, 25 3 a b 0 0 1 1 0 0 1;
4, 27 4 a d 0 0 1 1 0 1 1;
