1: (1 7 9)

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

2: (6 10 8)

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

3: (5 15 9)

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

4: (2 18 13)

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