Write a program that prompts the user to enter a year and displays the animal for the year on Chinese Zodiac.

Input validation: decide how the program should handle an illegal input for the year entered by the user.

Sample run 1

Enter a four-digit year: 1998

Your Chinese Zodiac animal is a Tiger

Sample run 2

Enter a four-digit year: 999

You must enter a four-digit year.

Please use C++