1: (0 2 7)

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

2: (4 7 21)

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

3: (3 9 5)

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

4: (2 18 7)

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