The Caribbean Online Judge invites you to participate in The COJ Progressive Contest # 6 which will start from 27/06/2013 at 14:00:00 and end 06/07/2013 at 14:00:00 ( time Cuba ). This is the address http://coj.uci.cu/contest/contestview.xhtml?cid=1301
Already started and is Anton_Lynov first.