1: (1 6 8)

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

2: (3 20 7)

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

3: (1 6 8)

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

4: (0 16 2)

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