using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        string[] strings=Console.ReadLine().Split(' ').ToArray();

        string string1=strings[0];

        string string2=strings[1];

        int MinLength=1;

        int sum=0;

        if(string1.Length>string2.Length)

        {

            MinLength=string2.Length;

        for (int i=MinLength; i<string1.Length; i++)

            sum +=(int)string1[i];

        }

        else

        {

            MinLength=string1.Length;

        for (int i=MinLength; i<string2.Length; i++)

            sum +=(int)string2[i];

        }

    }

}