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