1: (1 5 8)

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

2: (4 18 6)

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

3: (5 14 7)

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

4: (1 17 9)

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