1: (1 9 12)

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

2: (8 13 11)

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

3: (4 14 12)

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

4: (3 19 6)

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