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