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

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    string A, B; cin >> A >> B;
    if (stoll(B) < 0)
        cout << stoll(A) + stoi(B) << "\n";
    else
        cout << A + B << "\n";
}