using System;
using System.Collections.Generic;
using System.Linq;

namespace yukicoder
{
    public class Program
    {
        public static void Main()
        {
            var n = new string[2];
            n[0] = Console.ReadLine();
            n[1] = Console.ReadLine();
            var m = n.OrderBy(x => x.Length).ToArray();
            var a = "";
            var s = 0;
            for(var i = 1; i <= m[1].Length; i++)
            {
                var j = m[0].Length - i >= 0 ? m[0][m[0].Length - i] - '0' : 0;
                var k = m[1][m[1].Length - i] - '0';
                a = ((j + k + s) % 10).ToString() + a;
                if (j + k + s >= 10)
                {
                    s = 1;
                }
                else
                {
                    s = 0;
                }
            }
            if (s == 1)
            {
                a = "1" + a;
            }
            Console.WriteLine(a);
        }
    }
}