Write a Ruby application that allows a user to input a series of 10 integers and determines and prints the largest integer. Your program should use at least the following three variables:
a) counter: A counter to count to 10 (i.e., to keep track of how many numbers have been input and to determine when all 10 numbers have been processed).
b) number: The integer most recently input by the user.
c) largest: The largest number found so far.