1: (1 6 7)

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

2: (6 8 10)

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

3: (3 12 9)

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

4: (2 15 4)

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