LAB 5:
Ask the user to enter a number from 1 to 5.
If the user enters invalid input, exit from your program
with a message.

If the user enters a number from 1 to 5, print a different
message based on the number they entered.
For example:
if the user enters 1, its a win!
if the user enters 2, tell them play again.
if the user enters 3, they lose
etc.