1: (1 15 20)

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

2: (0 19 3)

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

3: (1 17 5)

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

4: (2 13 4)

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