1: (3 8 9)

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

2: (6 12 8)

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

3: (1 7 5)

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

4: (6 15 9)

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