Hello, Codeforces!

I'd like to invite you to Codeforces Round #375 (Div. 2). It'll be held on Monday, October 3 at 14:35 MSK and as usual Div. 1 participants can join out of competition. Note that round starts in the unusual time!

This round is held on the tasks of the school stage All-Russian Olympiad of Informatics 2016/2017 year in city Saratov. They were prepared by me and Mike Mirzayanov (MikeMirzayanov).

Great thanks to Gleb Evstropov (GlebsHP) for helping me preparing the contest, to Tatiana Semenova (Tatiana_S) for translating the statements into English and to Nikolay Kalinin (KAN) for writing solutions and very helpful advices.

It will be a little unusual round — you will be given six problems and two and half hours to solve them.