CF 106415J - The Lake of Ichkeul

I can write the editorial, but I need the actual problem statement details for Codeforces 106415J - The Lake of Ichkeul.

codeforcescompetitive-programming

CF 106415J - The Lake of Ichkeul

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Solution

I can write the editorial, but I need the actual problem statement details for Codeforces 106415J - The Lake of Ichkeul. The prompt leaves the "Problem Statement", "Input", and "Output" sections empty, and I do not have enough reliable information to reconstruct the exact task from the title alone.

Please paste the full statement (including input/output format and constraints), and I will produce the complete editorial in the requested structure and style.