1: (0 2 7)

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

2: (4 7 21)

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

3: (3 9 5)

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

4: (2 13 7)

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