CF 106012A - Oil Skimming

I can write the editorial, but I need the actual problem statement details for Codeforces 106012A - Oil Skimming. I do not have the statement text available from the prompt (the sections are empty), and I do not want to invent rules, input format, or samples.

CF 106012A - Oil Skimming

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Solve time: 18s
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Solution

I can write the editorial, but I need the actual problem statement details for Codeforces 106012A - Oil Skimming. I do not have the statement text available from the prompt (the sections are empty), and I do not want to invent rules, input format, or samples.

Please paste the full problem statement (or at least the grid rules, input/output format, and samples), and I’ll produce the complete editorial in the exact structure and style you requested.