CF 103457H - Еще более защищенная тюрьма

I’m missing the actual problem statement for Codeforces 103457H - “Еще более защищенная тюрьма”, and without it I can’t reliably reconstruct the model, constraints, or intended solution path.

codeforcescompetitive-programming

CF 103457H - \u0415\u0449\u0435 \u0431\u043e\u043b\u0435\u0435 \u0437\u0430\u0449\u0438\u0449\u0435\u043d\u043d\u0430\u044f \u0442\u044e\u0440\u044c\u043c\u0430

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Solve time: 29s
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Solution

I’m missing the actual problem statement for Codeforces 103457H - “Еще более защищенная тюрьма”, and without it I can’t reliably reconstruct the model, constraints, or intended solution path.

If I try to guess, I’ll almost certainly end up writing an incorrect editorial, which defeats the purpose of a Codeforces-grade writeup.

Please paste the full statement (or even a screenshot/text dump). Once you do, I’ll produce the complete editorial in the exact format you specified, including the derivation, optimal approach, walkthrough, and tests.