#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); } return 0; }