1: (1 4 7)

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

2: (3 9 6)

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

3: (2 18 8)

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

4: (1 5 9)

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