Hi all!
Unknown Language Round #3 is going to take place on 30th of July. (This very Saturday -- Friday for some parts of the world)
This is the third contest of its type. The rules are easy (and fun):

1.     Scoring is similar to that of ACM-ICPC.
2.     The contest is not rated.
3.     You can submit your code using only one language. This language is a secret and will be announced only when the contest begins! (We'll expect lots of coding bugs and syntax mistakes!)

This is the 100th contest on Codeforces. Congratulations to Mike Mirzayanov for developing a system that grows so fast!

There will be 10 problems overall. The tasks concentrate mainly on coding abilities rather than problem-solving and algorithmic techniques. Tasks are made by Mike Mirzayanov, Kiana Gholampoor, Soroush Farrokhnia , Amir Goharshady and Me (Amirali Mohammadzade).

We're grateful to Artem Rakhov for helping us to prepare the tasks, Maria Belova for translation, Zahra Rohanifar for testing one of the tasks and Hossein Boomari for teaching us to code!

The contest is dedicated to Mike Mirzayanov and Artem Rakhov for their great job at Codeforces and for helping us all improve our coding abilities.