Site is down, so here's the version from Google's cache http://webcache.googleusercontent.com/search?q=cache:rkFFbJMmbfcJ:www.ai-contest.com/problem_description

Site is down, so here's the version from Google's cache http://webcache.googleusercontent.com/search?q=cache:rkFFbJMmbfcJ:www.ai-contest.com/problem_description.php+http://www.ai-contest.com/problem_description.php http://webcache.googleusercontent.com/search?q=cache:rkFFbJM...