1: (7 8 12)

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

2: (8 13 16)

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

3: (10 17 14)

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

4: (5 11 9)

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