#include <bits/stdc++.h>
using namespace std;

int main() {
  string A, B;
  cin >> A >> B;
  if (B[0] != '-') {
    if (A == "0" && A == "-0") {
      A = "";
    }
    cout << A + B << endl;
  } else {
    cout << stoll(A) + stoll(B) << endl;
  }
}