1: (1 7 21)

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

2: (0 20 3)

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

3: (1 19 5)

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

4: (2 17 4)

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