1: (1 8 18)

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

2: (1 4 6)

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

3: (2 20 10)

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

4: (7 15 9)

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