1: (6 11 12)

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

2: (9 13 11)

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

3: (5 10 8)

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

4: (2 12 9)

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