1: (7 9 16)

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

2: (5 10 8)

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

3: (9 20 11)

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

4: (0 19 6)

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