Soon (on January 30 at 19:30 MSK) you are lucky to participate in Codeforces Round #227 for Div. 2 participants. Traditionally, Div. 1 participants can take part out of the competition.
Problems have been prepared by me. I want to thank Gerald Agapov (Gerald) for help in preparation of this round, Mary Belova (Delinur) for translation of statements, Michael Mirzayanov (MikeMirzayanov) for marvelous Codeforces and Polygon systems.
The main character of the tasks is the cat George.
UPD1: Scoring will be next: 500, 1000, 1500, 2000, 2500.
UPD2: Contest finished, congratulations to winners!