package asdfs;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.util.Scanner;
import java.util.StringTokenizer;


public class Sums
{
    Scanner scan;
    PrintStream out;
    StringTokenizer st;
    String temp = "";
    public Sums() throws Exception
    {

         scan = new Scanner( new File( "sums.in" ) );
         out = new PrintStream(new File("sums.out"));

    }
    public void run() throws Exception
    {

        while (scan.hasNext())
        {
            int sum = 0; //reset the sum
            String s = scan.nextLine();

            int c = 0;

            while (c < s.length())
            {
                temp = "";
                while (s.charAt( c )!= ',')
                {
                    temp += s.charAt( c );
                    c++;
                }
                sum += Integer.parseInt( temp );
            }
            out.println(sum);
        }
    }

    public static void main( String[] args ) throws Exception
    {
        Sums s = new Sums();
        s.run();
    }
}