1: (7 11 16)

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

2: (10 20 12)

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

3: (7 11 16)

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

4: (6 14 9)

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