1: (7 9 19)

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

2: (5 10 8)

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

3: (2 11 6)

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

4: (9 20 12)

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