1: (1 15 19)

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

2: (5 20 18)

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

3: (1 15 19)

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

4: (0 17 3)

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