1: (3 6 12)

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

2: (1 8 5)

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

3: (6 17 11)

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

4: (7 14 9)

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