1: (3 6 12)

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

2: (5 20 7)

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

3: (6 17 8)

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

4: (1 19 16)

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