1: (0 1 2)

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

2: (2 8 19)

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

3: (7 21 9)

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

4: (1 19 6)

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