1: (5 10 12)

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

2: (9 14 11)

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

3: (8 19 12)

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

4: (7 20 18)

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