1: (1 5 7)

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

2: (4 9 6)

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

3: (1 12 8)

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

4: (3 10 7)

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