#include<bits/stdc++.h> using namespace std; int main(){ int a,b,ans; char op; cin>>a>>b>>op; if(op==+){ ans=a+b; cout<<ans; } if(op==-){ ans=a-b; cout<<ans; } if(op==*){ ans=a*b; cout<<ans; } if(op==/){ if(b!=0){ ans=a/b; cout<<ans; }else{ cout<<"Divided by zero!"; } if(op!=+&&op!=-&&op!=*&&op!=/) cout<<"Invalid operator!"; } return 0; }