#include <iostream>
using namespace std;
int main() {
int a,b;
char c;
cin>>a>>b>>c;
switch (c) {
case '+': cout<<a+b; break;
case '-': if (a>b) cout<<a-b;
else cout<<b-a;
break;
case '/': if (a>b) cout<<a/b;
else cout<<b/a;
break;
case '*': cout<<a*b; break;
}
}
