`color(#FFFFFFff)(H)color(#E7E7E7ff)(o)color(#CFCFCFff)(r)color(#B7B7B7ff)(i)color(#9F9F9Fff)(z)color(#878787ff)(o)color(#6F6F6Fff)(n)`

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

int main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    freopen("TOANTU.INP", "r", stdin);
    freopen("TOANTU.OUT", "w", stdout);
    int x, y;
    char c;
    cin >> x >> y >> c;

    switch (c) {
        case '+': {cout << x + y; break;}
        case '-': {cout << x - y; break;}
        case '*': {cout << x * y; break;}
        case '/': {cout << x / y; break;}
    }
    return 0;
}