1: (3 7 13)

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

2: (6 20 8)

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

3: (1 14 3)

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

4: (0 18 2)

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