Comments
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I have participated in div1.... But it has nothing to do with "div1". Anyway,this round is awful.
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Tell me,why do you think this round is nice？Say a reason rather than hurrying downvoting me.

Or you guys just want a interesting problem that you can accpet by printf("rand()") ，or four problem that has been written years ago？

Why do you lovely guys participate a codefoces round？To solve five cute naive problems and get nothing？:)
+9

Thank you :) I just want to earn money like you guys :(

If they aren't able to write a contest,please go to problemset and practise more,rather than giving us five naive problems. :)
-76

I just want to know HOW MUCH dollars did you get from these writes？

I don't think a man can say these words after participating. How dare you to comment these f...ing words without your brain. ：）

If I can earn dollars by posting comments like you，please tell me. ：）

Finally, I wish the author and you a long life, a happy family and good health. Thanks a lot :) :) :)
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He is true. This round is awful. Tests in E are so strong that every wrong solution can pass it ：)

Do they have better ideas？They got a interesting idea（problem E) and some "strong" tests.

Bad ABCD，real “speedforces”. The worst round I've ever seen.

Finally，thanks the writers for this "wonderful" round ：）：）：）
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interesting E ...... (but too difficult TAT）