using static System.Math;
using System;

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = int.Parse(line[0]);
        var b = int.Parse(line[1]);
        if (check(a) && check(b)) anzan(a, b);
        else dentaku(a, b);
    }
    static void dentaku(int a, int b)
    {
        long ans = a * (long)b;
        var keta = Abs(ans).ToString().Length;
        if (keta > 8) Console.WriteLine("E");
        else Console.WriteLine(ans);
    }
    static void anzan(int a, int b)
    {
        long ans = a * (long)b / 10L;
        Console.WriteLine(ans);
    }
    static bool check(int a)
    {
        a = Abs(a);
        var b = new int[] { 100, 1000, 10000, 100000, 1000000, 10000000 };
        foreach (var x in b)
        {
            if (a % x != 0) return false;
            var t = a / x;
            if (t >= 1 && t <= 9) return true;
        }
        return false;
    }
}