1: (6 8 12)

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

2: (4 9 7)

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

3: (2 10 8)

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

4: (0 11 3)

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