1: (7 9 15)

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

2: (5 10 8)

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

3: (9 20 12)

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

4: (2 16 14)

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