# Y U Spill so Much?

Level pending

I had three boxes of cookies from my friends as a holiday gift. Unfortunately, I dropped all three boxes, and I don't know how many came from each friend. The cookies across the boxes were identical.

Let there be $$N$$ cookies. The probability of correctly putting the cookies back in the boxes, as they arrived, is $$\frac{1}{91}$$. Find $$N$$.

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