I NEED A C++ CODE!

Many websites ask for phone numbers. The problem is that there are many different ways to represent a phone number. Examples include 817-555-1234, 817 555 1234 (c), and (817) 555-1234 x23. Write a C++ program which inputs a string containing a phone number in any format and outputs it in the standard format. Your program may use either C-Strings or the C++ string Class, but should not mix them. For this assignment, the standard format is (817) 555-1234.

Sample Output (inputs in bold)

1. Please enter a phone number: 817-555-1234 The properly formatted number is (817) 555-1234

2. Please enter a phone number: (817)515 7259 x23 The properly formatted number is (817) 515-7259

3. Please enter a phone number: 214-555-999 The phone number must have at least 10 digits

4. Please enter a phone number: 800**4444xxx333 The properly formatted number is (800) 444-4333

Thank you.