using System; using System.Linq; class No722 { static void Main() { var num = Console.ReadLine().Split(' ').Select(x => Int64.Parse(x)).ToArray(); var isAnzan = (num[0] % 100) == 0 && (num[1] % 100) == 0 && Math.Abs(num[0]).ToString().Where(x => x != 0).Count()<2&& Math.Abs(num[1]).ToString().Where(x => x != 0).Count() < 2; var a = num[0] * num[1]; Console.WriteLine(isAnzan ? (a / 10).ToString() : -100000000 < a && a < 100000000 ? a.ToString() : "E"); } }