1: (0 5 8)

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

2: (1 21 6)

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

3: (3 9 7)

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

4: (2 10 8)

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