#include <iostream>
#include <iomanip>
#include <string>

using namespace std;
class PhoneNumber
{
 private:
  string areaCode; // 3-digit area code
  string exchange; // 3-digit exchange
  string line; // 4-digit line

 friend ostream &operator<<( ostream &, const PhoneNumber & );
 friend istream &operator>>( istream &, PhoneNumber & );      
}; // end class PhoneNumber

ostream &operator<<( ostream &output, const PhoneNumber &number )
{                                                                
   output << "(" << number.areaCode << ") "                      
          << number.exchange << "-" << number.line;                  
   return output; // enables cout << a << b << c;                
}
istream &operator>>( istream &input, PhoneNumber &number )  
{                                                           
    input.ignore(); // skip (                                
    input >> setw( 3 ) >> number.areaCode; // input area code
    input.ignore( 2 ); // skip ) and space                   
    input >> setw( 3 ) >> number.exchange; // input exchange 
    input.ignore(); // skip dash (-)                         
    input >> setw( 4 ) >> number.line; // input line         
    return input; // enables cin >> a >> b >> c;             
} 
main()
{
    PhoneNumber phone; // create object phone
    cout << "Enter phone number in the form (123) 456-7890:" << endl;    
    cin >> phone;                                           
    cout << "The phone number entered was: ";  
    cout << phone << endl;                                   
    system("pause");
} // end main