1: (3 9 12)

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

2: (4 13 11)

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

3: (3 9 12)

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

4: (7 14 10)

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