1: (7 11 12)

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

2: (9 13 11)

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

3: (5 10 8)

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

4: (9 19 12)

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