// I SELL YOU...! 
#include<iostream>
#include<vector>
#include<algorithm>
#include<functional>
#include<queue>
#include<chrono>
#include<iomanip>
#include<map>
#include<set>

using namespace std;
using ll = long long;
using P = pair<ll,ll>;
void init_io(){
  cin.tie(0);
  ios::sync_with_stdio(false);
  cout << setprecision(10);
}
signed main(){
  init_io();
  string a,b;
  cin >> a >> b;
  bool check = true;
  for(char c:a){
    if(c!='-'&&(c>'9'||c<'0')){
      check = false;
    }
  }
  for(char c:b){
    if(c>'9'||c<'0'){
      check = false;
    }
  }
  if(!check){
    cout << a + b <<endl; 
  }else{
    ll x = stol(a);
    ll y = stol(b);
    cout << x + y << endl;
  }
}