1: (1 8 11)

(0 20 3)(1 9 8 14 12 10 7)(2 5 4)(6 15 11)(13 18 16)(17 21 19)

2: (7 12 10)

(0 20 3)(1 9 8 14 12)(2 5 4)(6 15 11)(7)(10)(13 18 16)(17 21 19)

3: (6 15 11)

(0 20 3)(1 9 8 14 12)(2 5 4)(6)(7)(10)(11)(13 18 16)(15)(17 21 19)

4: (1 9 12)

(0 20 3)(1)(2 5 4)(6)(7)(8 14 12)(9)(10)(11)(13 18 16)(15)(17 21 19)