#include 

using namespace std;

void kalkulator(int a, int b, char c) {
    if(c == '+') {
        cout << a + b << endl;
    }
    else if(c == '-') {
        cout << a - b << endl;
    }
    else if(c == '*') {
        cout << a * b << endl;
    }
    else if(c == '/') {
        cout << a / b << endl;
    }
}
int main() {
    int a, b;
    cin >> a;
    cin >> b;
    char c;
    cin >> c;
    kalkulator(a, b, c);
    return 0;
}