1: (2 7 12)

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

2: (6 20 8)

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

3: (2 7 12)

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

4: (0 19 3)

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