include <iostream>

using namespace std;

int main() { long long n; long long m; cin >> m >> n; n = n + m; cout << n; }

include <iostream>

using namespace std;

int main() { long long n; long long m; cin >> m >> n; n = n - m; cout << n; }

include <iostream>

using namespace std;

int main() { long long n; long long m; cin >> m >> n; n = n * m; cout << n; }

include <iostream>

using namespace std;

int main() { long long n; long long m; cin >> m >> n; n = n % m; cout << n; }