Instructions

1. Notice that variables have been declared for you.
2. Write input statements to retrieve a year, a month, and a day from the user.
3. Include the print statements to output the following:or
4. Execute the program entering the following input:
5. Execute the program entering the following input:

month = 9 day = 21 year = 2002

month = 5, day = 32 year = 2014

month/day/year is an invalid date. 

month/day/year is a valid date.