Codeforces round #144 is going to be today.
Round is prepared by: KAN, fdoer, Skird, tunyash. Special thanks to Gerald for coordinating round preparing, many awesome ideas and making statements easy-understandable. Also I thank MikeMirzayanov for enjoyable problem-preparing system, Delinur for statements translation.
I hope, that all will be well and you will enjoy solving problems.
UPD: Score distribution will be announced a few minutes before the start of the contest.
UPD2: score distribution is 500-1000-1500-2000-2500 in both divisions
Congrats to winners.
UPD: editoral for all problems, except div1.D is ready