1: (0 2 6)

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

2: (4 6 21)

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

3: (3 9 5)

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

4: (2 16 6)

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