#include <iostream>

using namespace std;

int main() {
    int a, b;
    char op;
    cin >> a >> op >> b;
    switch(op) {
        case '+' : cout << a + b; return 0;
        case '-' : cout << a - b; return 0;
        case '*' : cout << a * b; return 0;
        default : cout << a / b;
    }
    return 0;
}