# Your code header goes here, as always



# This function takes a single letter and a string,
# and returns the number of times the letter occurs in
# the string.  (The function will not work if the first 
# argument is not a single letter).

def letterCount(letter, myString):

# This function takes in a single list as input, and 
# returns the same list sorted.

def sortList(myList):


# This function checks to see whether the argument,
# a string, is or is not a palindrome.  It will return
# True for palindromes and false otherwise.

def isPalindrome(myString):



# Main will not be graded for correctness; rather,
# we want to see you test these three functions.  This
# is for your own sanity as well--you should go through this
# process with every function you write.  Each function should
# get called 3 or 4 times with different input, and you should
# print the return value to make sure it is correct.
#
# Included is an example to get you started.

def main():
    print("Counting numbers of a's in aardvark:")
    print(letterCount("a", "aardvark"))
    # Should print 3