1: (1 5 8)

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

2: (4 10 6)

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

3: (1 15 9)

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

4: (7 18 11)

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