Given a string, return True if its length is even or False if the length is odd.
odd_or_even("apples") ➞ True
# The word "apples" has 6 characters.
# 6 is an even number, so the program outputs True.
odd_or_even("pears") ➞ False
# "pears" has 5 letters, and 5 is odd.
# Therefore the program outputs False.
odd_or_even("cherry") ➞ True
N/A