1: (1 8 10)

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

2: (5 11 9)

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

3: (4 12 10)

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

4: (3 13 11)

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