#include<bits/stdc++.h> using namespace std; int main(){ int a,b; char t; cin>>a>>t>>b; if(t=='+'){ cout<<a+b; } if(t=='-'){ cout<<a-b; } if(t=='*'){ cout<<a*b; } if(t=='/'){ cout<<a/b; } if(t=='%'){ cout<<a%b; } return 0; }