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