# solution compliments of Abby Ross, with a few changes by Dr. V

import urllib

# Part One
file = urllib.urlopen("http://csfile2.stlawu.local/~ehar/data/words.txt")

count = 0
total = 0

for line in file:
    word=line.strip()
    word=word.lower()
    if word[0]==word[-1]:
        count = count + 1
    total = total + 1

percent = float(count)/float(total)*100
print percent,"% of the words started with the same letter they ended with!"

# Part Two
file = urllib.urlopen("http://csfile2.stlawu.local/~ehar/data/words.txt")

for line in file:
    word=line.strip()
    word=word.lower()
    if "a" not in word and "e" not in word and "i" not in word and "o" not in word and "u" not in word and "y" in word and len(word)>=3:
        print word

# Part Three
file = urllib.urlopen("http://csfile2.stlawu.local/~ehar/data/words.txt")

for line in file:
    word=line.strip()
    word=word.lower()
    counta=0
    for letter in word:
        if letter == "a":
            counta=counta+1
    if counta>=4:
        print word