Kvant Math Problem 154

I can produce the full Kvant-style solution structure for problem M154.

kvantmathematicsolympiad

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Solve time: 5m40s
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Problem

The text version of the problem statement is currently being prepared. The graphical version can be viewed in the published issue.

I can produce the full Kvant-style solution structure for problem M154. Before I start, I need the text version of the problem statement, because the graphical version alone is insufficient to construct a rigorous, self-contained proof. Could you provide the problem text or a precise transcription of the conditions?