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| USER: https://codeforces.com/problemset/problem/1989/F | |
| BOT: Thanks! Now could you provide a link to the editorial. | |
| USER: https://codeforces.com/blog/entry/130988 | |
| BOT: Would you like hints to help you solve the problem or an interactive explanation of the editorial (hint/editorial)? | |
| USER: hint | |
| BOT: What are you current thoughts on the problem? | |