#include<iostream>
using namespace std;
int main()
{
int a,b;
char ch;
cin>>a>>b>>ch;
switch(ch)
{
case'+':cout<<a<<ch<<b<<"="<<a+b<<endl;break;
case'-':cout<<a<<ch<<b<<"="<<a-b<<endl;break;
case'*':cout<<a<<ch<<b<<"="<<a*b<<endl;break;
case'/':if(b!=0)cout<<a<<ch<<b<<"="<<a/b;if(a%b!=0)cout<<"..."<<a%b;break;
default:cout<<"Invalid operator";
}
return 0;
}