1: (0 2 9)

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

2: (1 20 6)

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

3: (2 10 7)

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

4: (0 21 19)

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