1: (0 2 3)

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

2: (2 6 16)

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

3: (1 20 9)

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

4: (8 19 15)

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