1: (3 9 12)

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

2: (5 13 11)

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

3: (3 9 12)

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

4: (1 6 4)

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