Drsoccerball
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- 2015
Re: 2015 permutation X2 marathon
![](https://latex.codecogs.com/png.latex?\bg_white \frac{8! \cdot 2! +8! \cdot 2!}{10!})
The 2! is for the opposiote side
If im not mistaken, it should be 2/15
The 2! is for the opposiote side