1: (6 10 20)

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

2: (2 19 7)

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

3: (6 16 8)

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

4: (0 18 3)

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