1: (7 10 12)

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

2: (2 11 9)

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

3: (7 10 12)

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

4: (5 13 8)

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