I'm sorry for a delay with publishing the editorial.
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Problem author: MikeMirzayanov.
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Problem author: MikeMirzayanov, Kniaz.
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Problem author: MikeMirzayanov.
Tutorial is loading...
Problem author: MikeMirzayanov, Kniaz.
Tutorial is loading...
Автор задачи: Kniaz.
Tutorial is loading...
Автор задачи: MikeMirzayanov.
I want to thank Mikhail Piklyaev (awoo) for translation of tutorial!