1: (6 7 11)

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

2: (5 9 11)

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

3: (8 13 10)

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

4: (3 11 7)

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