1: (1 10 20)

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

2: (7 21 19)

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

3: (6 11 9)

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

4: (0 20 17)

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