1: (1 6 12)

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

2: (5 14 8)

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

3: (7 13 9)

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

4: (3 8 12)

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