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#include <iostream>
#include <string>
using namespace std;

int main()
{
    string a;
    string b;
    cin >> a;
    cin >> b;
    int m;
    int r = 0;
    int LA = a.length();
    int LB = b.length();
    string result = "";
    if (LB > LA)
    {
        swap(a,b);
        swap(LA,LB);
    }
    int dif = LA - LB;
    for (int i=LA-1;i>=0;i--)
    {
        if (i>=dif)
        {
          m = int(a[i])+ int(b[i-dif])-96 + r;
          result.push_back(char(m%10 + 48));
          if (m>9)
          {
              r = 1;
          }
          else
          {
              r = 0;
          }
        }
        else
        {
            if (r == 1)
            {
               if (a[i] == '9')
               {
                   result.push_back('0');
               }
               else
               {
                   r = 0;
                   result.push_back(a[i]+1);
               }
            }
            else
            {
                result.push_back(a[i]);
            }
        }
    }
    if (r==1)
    {
        result.push_back('1');
        LA++;
    }
    for (int i=0;i < LA/2;i++)
    {
        swap(result[i],result[LA-i-1]);
    }
    cout << result;
}