1: (0 2 4)

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

2: (1 10 3)

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

3: (2 6 19)

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

4: (5 20 7)

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