1: (1 5 12)

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

2: (3 20 7)

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

3: (6 13 8)

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

4: (11 18 12)

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