1: (2 8 11)

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

2: (6 13 9)

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

3: (4 8 7)

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

4: (1 10 3)

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