#include<bits/stdc++.h> using namespace std; int main(){ int a,b; char zf; cin>>a>>zf>>b; if(zf=='+'){ cout<<a+b; }else if(zf=='-'){ cout<<a-b; }else if(zf=='*'){ cout<<a*b; }else if(zf=='/'){ cout<<a/b; } return 0; }