1: (0 2 9)

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

2: (1 20 6)

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

3: (2 15 7)

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

4: (0 21 19)

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