using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _06.Sum_big_numbers
{
    class Program
    {
        static void Main(string[] args)
        {
            string input1 = Console.ReadLine();
            string input2 = Console.ReadLine();
            string shortestNum = DetermineShortestNum(input1, input2);
            string longestNum = DetermineLongestNum(input1, input2);
            int sum = 0;
            int count = 0;
            List<string> sumString = new List<string>();

            for (int i = 0; i < shortestNum.Length; i++)
            {
                sum = (Convert.ToInt32(shortestNum[shortestNum.Length - 1 - i].ToString()) + Convert.ToInt32(longestNum[longestNum.Length - 1 - i].ToString()) + count);
                count = 0;
                if (sum >= 10)
                {
                    sum %= 10;
                    count++;
                }
                sumString.Add(sum.ToString());
            }
            if (count != 0)
            {
                int dif = longestNum.Length - shortestNum.Length;
                int lastCount = Convert.ToInt32(longestNum[longestNum.Last()].ToString()) + count;
                sumString.Add(lastCount.ToString());
                if (shortestNum.Length != longestNum.Length)
                {
                    sumString.Add(new string(longestNum.Take(dif - 1).ToArray()));
                }
            }
            else
            {
                if (shortestNum.Length != longestNum.Length)
                {
                    int dif = longestNum.Length - shortestNum.Length;
                    sumString.Add(new string(longestNum.Take(dif).ToArray()));
                }
            }

            sumString.Reverse();
            Console.WriteLine(string.Join("", sumString));

        }

        static string DetermineShortestNum(string num1, string num2)
        {
            if (num1.Length != num2.Length)
            {
                if (num1.Length == Math.Min(num1.Length, num2.Length))
                {
                    return num1;
                }
                else
                {
                    return num2;
                }
            }
            else
            {
                return num1;
            }

        }

        static string DetermineLongestNum(string num1, string num2)
        {
            if (num1.Length != num2.Length)
            {
                if (num1.Length == Math.Max(num1.Length, num2.Length))
                {
                    return num1;
                }
                else
                {
                    return num2;
                }
            }
            else
            {
                return num2;
            }

        }
    }
}