Wk4_2

def first_letter_of_last_string(list):
    return list[-1][0]
    '''This function returns the first letter of
    the last string of a list'''

print(first_letter_of_last_string(["food", "music", "book", "game", "sleep"]))
print(first_letter_of_last_string(["food", "music", "book"]))