1: (0 4 11)

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

2: (2 12 9)

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

3: (1 20 3)

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

4: (0 6 12)

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