Hello, Codeforces!

I want to test the system before the rated rounds based on Technocup stage, to be sure that everything works as expected.

I invite you to take part in Testing Round 14 (Unrated). It will start soon, on December, 22, 11:05:00 (UTC). It will be unofficial unrated round. The duration is 90 minutes.

Pretests are unusually weak to trigger more hack.

Thank you,
MikeMirzayanov