# 
# ps8pr1.py - Problem Set 8, Problem 1
#
# String-method puzzles
#

s1 = 'Oh! How now brown cow!'
s2 = 'A maddening method to my MADNESS'

# Example puzzle (puzzle 0):
# Count all occurrences of the letter O (both lower- and upper-case) in s1.
answer0 = s1.lower().count('o')     
print('answer0 =', answer0)