write a complete c$++$ program that does the following:

prompts the user for a number with atleast three digits.

if the user enters an invalid number, say "Goodbye" and end the program.

includes a function called parityCheck that takes as input the user's number and does the following:

if the digits of the user's number are all odd, prints "all odd"

if the digits of the user's number are all even, prints "all even"

if the digits of the user's number are not all odd or all even, prints "mixed parity"