1: (0 2 7)

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

2: (1 20 4)

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

3: (0 2 7)

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

4: (3 8 5)

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