#include <iostream>
using namespace std;
int a, b, c, aux;
char ch;
int main()
{
cin >> a;
cin >> b;
cin >> ch;
if (a < b) {aux = a; a = b; b = aux; }
if (ch == '+') c = a + b;
if (ch == '-') c = a - b;
if (ch == '*') c = a * b;
if (ch == '/') c = a / b;
cout << c;
return 0;
}