1: (1 6 8)

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

2: (5 9 7)

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

3: (4 17 8)

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

4: (3 19 9)

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