1: (1 2 3)

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

2: (3 7 20)

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

3: (0 18 5)

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

4: (2 20 4)

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