1: (2 7 9)

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

2: (6 20 8)

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

3: (2 7 9)

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

4: (1 11 3)

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