Hello.In the 11th presidential elections of Iran , Dr.Hasan Rohani(Fereydoun) became the President.He is 7th president of Iran.Congratulations to all Iranian people. :D

Hello.Today was shaazzz short answer programming contest.You can see problems at http://bayanbox.ir/id/7734066800531734087 (Problems are in Persian).If you are Iranian , you can also practice and send your answers at sh44zzz.gigfa.com for judging.shaazzz website : shaazzz.blogfa.com . Thanks :D

Sorry for writing in Persian: سلام . به زودی قراره مسابقات آریا کاپ در ایران برگزار بشه این آزمون پنج مرحله ای هست .برای اطلاعات .بیشتر به اینجا مراجعه کنید

I want to participate in google codejam , but I can't sign in into it.Not only me, my friends have this problem too.Please help us. Thanks :D

Hi! Please see this code==>3375812.the output of the test case should be 1800.compile it and test it.The output of this code for n=5 is 1800.But in codeforces judging the output was 1799.Why??????????????????