1: (3 7 12)

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

2: (6 18 8)

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

3: (3 7 12)

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

4: (11 20 13)

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