CF 103729J - Palindrome Reversion

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Solve time: 31s
Verified: no

Solution

I don’t have the actual statement for Codeforces 103729J - Palindrome Reversion in the prompt, and without it I can’t reliably reconstruct the intended problem or derive a correct solution.

If you paste the full problem statement (or even just the input/output description and constraints), I’ll write the complete editorial in the exact format you specified, including the algorithm walkthrough, proof idea, Python solution, and test suite.

Send it over and I’ll continue from there.