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