1: (1 8 18)

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

2: (6 20 10)

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

3: (0 18 3)

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

4: (5 15 7)

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