# b_filter_string2.py

# -*- coding: utf-8 -*-

# b_filter_string2.py
from random import *

zzz = '''
Python
Programming
Is
Lots
Of
Fun

These
are
what
words
that
remain
from
having
to
remove
all
the
extra
data
'''.strip().splitlines()

abc = 'abcdefghijklmnopqrstuvwxyz'
p = ['\n','-'] + [z for z in abc.upper()+abc.lower()]
for z in range(33,256):
    if chr(z) not in p:
        for i in 'z'*9:
            L = len(zzz)
            x = sorted(zzz,key=len)
            x = choice(x[:L/5])
            x = zzz.index(x)
            r = randint(0, len(zzz[x]))
            t = list(zzz[x])
            t.insert(r, chr(z))
            zzz[x] = ''.join(t)
0
zzz = '\n'.join(zzz)
print zzz

t = set(zzz)
for z in t:
    if z not in p:
        zzz=zzz.replace(z,'')
0
print
print zzz