using System;

public class Program

{

    public static void Main()

    {

            Console.WriteLine("Input:");

            string input = Console.ReadLine();

            string[] splitInput = input.Split('+');

            int Output = 0;

            for(int i=0;i<splitInput.Length;i++)

            {

                Output = Output + int.Parse(splitInput[i]);

            }

            Console.WriteLine("Output:{0}", Output);

            Console.ReadLine();

    }

}