1: (1 5 7)

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

2: (3 9 6)

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

3: (1 13 4)

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

4: (8 16 10)

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