1: (3 7 12)

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

2: (2 10 4)

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

3: (1 8 6)

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

4: (7 18 9)

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