Olá Codeforces!

On August 10, we held Universidade de São Paulo Try-outs, a competition that aims to select the teams that will represent our university in the Brazilian regionals. We will also run an online mirror contest in Codeforces Gym on August 17 14:00 (UTC -3, São Paulo time)!

The link for the mirror in Codeforces: https://mirror.codeforces.com/gym/105297

Contestants should follow ICPC rules. We have prepared challenging and interesting problems suitable for both beginners and veterans. You can check previous contests to get an estimate of the difficulty level.

The authors of the contest are Gabriel morete Morete, Jiang kokosha Zhi, Luan LipArcanjo Arcanjo, Lucas lucas3h Harada, Renzo renzo1805 Gómez, Thiago thilio Oliveira and myself. We also like to thank João joaovictorcmiranda Miranda, Marcelo pastel Lage, Pedro pedroteosousa Sousa and Yan yancouto Couto for their help preparing the contest and translating the statements.

Also, huge thanks to the testers for their time and valuable feedback:

Antonio antoniomsah Hachisuca, Nathan nathan_luiz Martins and Willian wnmrmr Mori;

Gabriel perchuts Lucas, Gustavo gustavocruz Cruz and Kaio MvKaio Vieira.

We will look forward your participation!

UPD: Editorials added to contest materials!