1: (8 10 18)

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

2: (3 10 9)

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

3: (5 19 17)

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

4: (1 6 4)

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