1: (2 7 12)

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

2: (6 12 10)

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

3: (0 8 4)

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

4: (1 19 3)

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