1: (1 5 15)

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

2: (2 20 7)

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

3: (1 5 15)

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

4: (6 16 14)

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