Hello, Codeforces!↵
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We are glad to invite you to participate in Codeforces Round #449 (both Div. 1 and Div. 2) which will be held on [December 2, 17:05 MSK](http://www.timeanddate.com/worldclock/fixedtime.html?day=2&month=12&year=2017&hour=17&min=5&sec=0&p1=166).↵
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There are seven problems, created by [user:mcfx,2017-12-01], [user:ODT,2017-05-01], [user:dogther,2017-12-01].↵
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This round is about the happiest girl in the world — Chtholly Nota Seniorious~!↵
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You will help Chtholly, Nephren, Ithea and Willem (characters in the great novel and anime ["Whatare you doingDo You Do at the eEnd of the wWorld? Are yYou bBusy? Will yYou sSave uUs?"](http://sukasuka-anime.com)) to solve some problems.↵
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![ ](https://i.loli.net/2017/12/01/5a21303d1f40a.png)↵
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([Image](https://www.pixiv.net/member_illust.php?mode=medium&illust_id=62776856) by [gin_sei56(・.8・)](https://www.pixiv.net/member.php?id=6355256) on pixiv)↵
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This round is our first round on Codeforces.↵
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Thanks to [user:zcyskyaa,2017-12-01] for helping us, [user:cyand1317,2017-12-01] and [user:Tommyr7,2017-12-01] for testing the round, [user:gritukan,2017-12-01] and [user:KAN,2017-12-01] for round coordination and [user:MikeMirzayanov,2017-12-01] for Codeforces and Polygon platforms.↵
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This round has 5 problems in each division and you have 2 hours to solve them.↵
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The scoring will be announced shortly before the start of the contest.↵
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The contest is rated for both Div. 1 and Div. 2 contestants.↵
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It's recommended for both divisions to read through the [Interactive Problems Guide](http://codeforces.me/blog/entry/45307) before the round.↵
↵
Wish everyone high rating and accepted submissions!
↵
We are glad to invite you to participate in Codeforces Round #449 (both Div. 1 and Div. 2) which will be held on [December 2, 17:05 MSK](http://www.timeanddate.com/worldclock/fixedtime.html?day=2&month=12&year=2017&hour=17&min=5&sec=0&p1=166).↵
↵
There are seven problems, created by [user:mcfx,2017-12-01], [user:ODT,2017-05-01], [user:dogther,2017-12-01].↵
↵
This round is about the happiest girl in the world — Chtholly Nota Seniorious~!↵
↵
You will help Chtholly, Nephren, Ithea and Willem (characters in the great novel and anime ["What
↵
![ ](https://i.loli.net/2017/12/01/5a21303d1f40a.png)↵
↵
([Image](https://www.pixiv.net/member_illust.php?mode=medium&illust_id=62776856) by [gin_sei56(・.8・)](https://www.pixiv.net/member.php?id=6355256) on pixiv)↵
↵
This round is our first round on Codeforces.↵
↵
Thanks to [user:zcyskyaa,2017-12-01] for helping us, [user:cyand1317,2017-12-01] and [user:Tommyr7,2017-12-01] for testing the round, [user:gritukan,2017-12-01] and [user:KAN,2017-12-01] for round coordination and [user:MikeMirzayanov,2017-12-01] for Codeforces and Polygon platforms.↵
↵
This round has 5 problems in each division and you have 2 hours to solve them.↵
↵
The scoring will be announced shortly before the start of the contest.↵
↵
The contest is rated for both Div. 1 and Div. 2 contestants.↵
↵
It's recommended for both divisions to read through the [Interactive Problems Guide](http://codeforces.me/blog/entry/45307) before the round.↵
↵
Wish everyone high rating and accepted submissions!