USER: https://codeforces.com/problemset/problem/1957/E

BOT: Thanks! Now could you provide a link to the editorial.



USER: https://codeforces.com/blog/entry/128716

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USER: https://codeforces.com/blog/entry/128716

BOT: There was something wrong with the link. Could you paste it again?



USER: https://codeforces.com/problemset/problem/1957/E

BOT: There was something wrong with the link. Could you paste it again?