Hi Codeforces!

Igorfardoc, Vladithur, Alexdat2000, GlowCheese, DeMen100ns, SPyofgame and me (spelling "thanh-chau-n-s-2") are delighted to invite you to participate in Codeforces Round #842 (Div. 2).

• Start time: Jan/05/2023 17:35 (Moscow time)
• Duration: 120 minutes.
• Number of tasks: 6.

Special thanks to:

• errorgorn for his wonderful coordination.
• Vladithur for providing wonderful problems.
• Alexdat2000 for testing and translating our statements.
• Vip testers: Valenz, who spotted some critical issues in the problemset.
• Alexdat2000, Igorfardoc, SPyofgame, GlowCheese, DeMen100ns for helping us in some different phases of preparing the problem set.
• All-time mighty red cyan testers: gyh20, Chenyu_Qiu, xiaoziya, feecIe6418, Little09, ShmilyTY, thenymphsofdelphi, neko_nyaaaaaaaaaaaaaaaaa, LastDance, tfg, Andreasyan, generic_placeholder_name, Mangooste, BucketPotato.
• Other testers: darkkcyan, maomao90, tibinyte (absolutely fake true color), Gheal, bugdone, valeriu, satyam343, alecs, 1DWalker, aineee, nyagami, vangtrangtan, hydroshiba, E404_Not_Found, DMCS, Duy_e, LetterC67, Ignr_h31, TrendBattles, kodomotachi.
• Other people for some reason cannot participate officially in this round: QuangBuiCPP, LeCaToX, dinhsangBKA, Hungconmk, antontrygubO_o, 74TrAkToR, ShuiLaoshi, Qingyu, alexxela12345, _FireGhost_.
• MikeMirzayanov for amazing platforms Codeforces and Polygon.
• Last but not least, you for participating and then being rage while implementing some 200 lines of code.

Edit: there will be $$$2$$$ packages for two participants in Vietnam, the highest score and the luckiest. You have to set your region to Vietnam to be qualified.

The score distribution will be announced later.

Hope to see you in the final standings!