using System;
using System.Linq;

namespace ConsoleApp
{
    class Program
    {
        static void Main()
        {
            string line = Console.ReadLine();
            int[] lineSplit = line.Split().Select(int.Parse).ToArray();
            int sum = 0;
            foreach (var number in lineSplit)
            {
                char[] currentArray = number.ToString().ToCharArray();
                Array.Reverse(currentArray);
                int newNumber = int.Parse(new string(currentArray));
                sum += newNumber;
                //sum += int.Parse(number.ToString().Reverse().Aggregate("", (s, c) => s + c));
            }

            Console.WriteLine(sum);
        }
    }
}