1: (1 9 12)

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

2: (8 13 11)

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

3: (4 14 12)

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

4: (3 18 5)

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