exercise 9.3 - avoids

"""=====================

exercise 9.3

====================="""

def avoids(word, forbidden_chars):

    letter = ""

    forbidden_char = ""

    

    for letter in word:

        if letter.lower() in forbidden_chars.lower():

            return False

    

    return True

# end def avoids ()

avoid_chars = raw_input()

total_words = 0

fin = open('words.txt')

for line in fin:

    word = line.strip()

    if avoids(word,avoid_chars):

        print word

        words_that_avoid = words_that_avoid + 1

    total_words = total_words + 1

total_unavoided = total_words - words_that_avoid

print total_unavoided