1: (1 11 21)

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

2: (0 20 3)

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

3: (1 19 8)

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

4: (5 12 10)

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