1: (6 10 20)

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

2: (2 11 9)

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

3: (6 10 20)

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

4: (0 7 3)

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