#include <iostream>
#include <stdio.h>
#include <string>

using namespace std;

int main(int argc, const char * argv[])
{
    // insert code here...
    string a,b,sum;
    
    cin>>a;
    cin>>b;
    
    while(a.length()>b.length())
    {
        b='0'+b;
    }
    
    while(a.length()<b.length())
    {
        a='0'+a;
    }
    
    int k=0;
    int l=0;
                     for (unsigned long i=(a.length()-1);i>=0;--i)
                          {
                              if (i==(a.length()-1))
                              {
                                  
                              k=int(sum[l])+int(a[i])+int(b[i])-2*48;
                                  
                              }else k=int(sum[l])+int(a[i])+int(b[i])-2*48;
                              
                              if (k>10)
                              {
                                  sum[l-1]='1';
                                  sum[l]=char(k-10);
                              }else sum[l]=char(k);
                              ++l;
                          }
    
    for (int i=l;i>=0;--i)
    {
        cout<<sum[l];
    }
    return 0;
}