Hello Codeforces! (你好, Codeforces!)

Kaey and I are glad to invite you to Codeforces Round 967 (Div. 2) which will start on Aug/20/2024 17:35 (Moscow time).

The contest will last for 2 hours with 5 tasks for you to solve, and 1 task will have subtasks. The contest will only be rated for those with a rating not higher than 2099, but higher rated users are also more than welcome to participate out of competition. There is at least one interactive problem, so please read the guide for interactive problems if you are unfamiliar with them.

Holding the contest would have been impossible without the help from:

• Kaey for supercalifragilisticexpialidocious coordination.
• feecle6418 for providing idea of one of the problem.
• BurnedChicken, cheissmart, SorahISA, WiwiHo, Fysty, Potassium, Emilan, Wayne_Yan, sam571128, Darren0724, HNO2, FoodSheep, Aestivate, jamesbamber, franv, jakao, warner1129, guagua0407, ub33, Bossusuprem, AverageAmogusEnjoyer, _hq8398_, XDEv11, Qualified, temmieowo, kenkenken, ayhan23, DanielMontes, TLE_Automaton, Mohamed_M.M.R, BaoCoder613, alls, Vamperox, Ahmad_OS, AdunAdunov, ciao_gio, baibaiouo, VelajZmaj, pandaa73 for testing and giving useful feedback to make the round better.
• Alexdat2000 for translating the statements to Russian.
• MikeMirzayanov for Codeforces and Polygon.

The score distribution is $$$500 - 1000 - 1500 - 2000 - (2000 - 2000)$$$.

Good luck and have fun!