_Elnurbek_ and az1zbek.val1jonov We are trying to be "LEGENDARY GRANDMASTER" in codeforces.com 1. Don't cheat! 2. Participate to all codeforces div 1, 2, 3, 4! 3. Never give up! 4. Pe polite and do not report to other, if it is possible. It makes less enemy! 5-->Last one. Get some advices from tourist, jiangly or zhoukangyang