1: (1 5 8)

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

2: (4 9 7)

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

3: (3 11 8)

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

4: (2 18 9)

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