1: (7 9 11)

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

2: (11 16 18)

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

3: (15 20 17)

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

4: (9 18 14)

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