#include <iostream>
#include <string>
#include <stdio.h>
#include <stdint.h>
using namespace std;

using ll = long long;

#define CIN( LL , A ) LL A; cin >> A 
#define RETURN( LL , ANSWER ) const LL answer_for_contest = ( ANSWER ); cout << answer_for_contest << endl; return 0 

int main()
{

  CIN( string , A );
  CIN( string , B );
  ll size_A = A.size();
  ll size_B = B.size();
  ll C = 0;
  string answer = "";
  while( size_A != 0 || size_B != 0 || C != 0 ){
    ll a = size_A == 0 ? 0 : stoi( A.substr( size_A - 1 , 1 ) );
    ll b = size_B == 0 ? 0 : stoi( B.substr( size_B - 1 , 1 ) );
    ll c = a + b + C;
    A = size_A == 0 ? A : A.substr( 0 , size_A - 1 );
    size_A = A.size();
    B = size_B == 0 ? B : B.substr( 0 , size_B - 1 );
    size_B = B.size();
    C = c / 10;
    answer = to_string( c % 10 ) + answer;
  }
  RETURN( string , answer );

}