I have been trying to solve [this](http://www.spoj.com/problems/MAIN73/) problem for some time now but have been unable to figure out a way to find the grundy values for rows. I tried writing a bruteforce solution which gives me the grundy values of rows to try to figure out the relation between grundy values and position of stones in a row but have not been able to observe any pattern. ↵
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Any hints would be appreciated.
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Any hints would be appreciated.
