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

int main() {
	string a, b;
	cin >> a >> b;
	if (b[0] == '-') cout << stoll(a) + stoll(b) << endl;
	else {
		if (a == "0" || a == "-0") cout << b << endl;
		else cout << stoll(a) << stoll(b) << endl;
	}
}