1: (1 5 12)

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

2: (2 19 6)

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

3: (11 20 13)

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

4: (1 10 3)

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