Soon, on January 24th at 19:30 MSK, you are lucky to participate in Codeforces Round #226 for Div. 2 participants. Traditionally, Div. 1 participants can take part out of the competition.
During the round you will be helping to the hero of the problems — usual bear.
UPD: Round rescheduled for 5 minutes later
UPD: We hope that you liked round.
Congratulations to winners: