1: (4 7 12)

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

2: (3 10 6)

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

3: (8 13 11)

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

4: (5 14 12)

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