#include <fstream>
#include <iostream>

using namespace std;

int main() {
	ifstream fin("adunare.in");
	ofstream fout("adunare.out");

    if (!fin.is_open()) {
        cerr << "Error: Could not open input file." << endl;
        return 1;
    }

    if (!fout.is_open()) {
        cerr << "Error: Could not open output file." << endl;
        return 1;
    }

    int a, b;
    fin >> a >> b;

    if (fin.fail()) {
        cerr << "Error: Failed to read integers from input file." << endl;
        return 1;
    }

    fout << a + b;

    fin.close();
    fout.close();

    return 0;
}