1: (0 1 2)

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

2: (1 5 7)

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

3: (4 8 6)

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

4: (2 21 7)

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