1: (3 7 12)

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

2: (2 11 4)

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

3: (0 7 5)

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

4: (6 13 8)

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