1: (2 7 18)

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

2: (1 10 4)

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

3: (0 8 6)

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

4: (7 19 9)

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