1: (6 9 12)

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

2: (4 9 19)

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

3: (5 20 18)

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

4: (8 13 10)

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