1: (0 2 16)

(0)(1 20 8 7 5)(2 18 16 21 17 15 13)(3 6 4)(9 19 11)(10 14 12)

2: (1 20 8)

(0)(1 7 5)(2 18 16 21 17 15 13)(3 6 4)(8)(9 19 11)(10 14 12)(20)

3: (15 21 17)

(0)(1 7 5)(2 18 16 21 13)(3 6 4)(8)(9 19 11)(10 14 12)(15)(17)(20)

4: (2 18 13)

(0)(1 7 5)(2)(3 6 4)(8)(9 19 11)(10 14 12)(13 16 21)(15)(17)(18)(20)