using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace _6._Sum_Reversed_Numbers
{
	class Program
    {
        static void Main(string[] args)
        {
			List<string> input = Console.ReadLine().Split().ToList();

			int sum = 0;

			foreach (var s in input)
			{
				sum += int.Parse(Reverse(s));
			}

			Console.Write(sum);
        }


		public static string Reverse(string s)
		{
			char[] charArray = s.ToCharArray();
			Array.Reverse(charArray);
			return new string(charArray);
		}
	}
}