import urllib
import sys
import re
import string

target_url = "http://www.pythonchallenge.com/pc/def/equality.html"
text_re = re.compile(r'<!--(\D*)-->')
answer_re = re.compile('[a-z][A-Z]{3,3}[a-z][A-Z]{3,3}[a-z]')

if __name__ == "__main__":
    try: target_text = urllib.urlopen(target_url).read()
    except IOError, e:
        print "Failed!"
        sys.exit()
    r = text_re.findall(target_text)[0]
    if r:
        l = answer_re.findall(r)
        for a in l: print a[4],