1: (3 9 12)

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

2: (8 14 11)

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

3: (3 9 12)

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

4: (2 13 4)

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