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executable file 50 lines (40 sloc) 0.976 kB
#!/usr/bin/python
import sys
from math import *
def pfactor(x):
factorlist = []
if x == 1:
factorlist.append(x)
while x % 2 == 0:
factorlist.append(2)
x /= 2
limit = 1 + int(sqrt(x))
for factor in range(3, limit, 2):
while x % factor == 0:
factorlist.append(factor)
x /= factor
if x > 1:
factorlist.append(x)
return factorlist
if len(sys.argv) != 1 + 2:
charset = ' Wadefhlnost'
# all 23 prime factors are of order 1
s = 13682311570832829480888979137834570837851469148689544502986
else:
charset = sys.argv[1]
s = int(sys.argv[2])
modulo = len(charset)
while len(pfactor(modulo)) != 1:
modulo += 1
num = iter(range(2, 9999))
while s != 1 :
n = num.next()
if s % n == 0 :
sys.stdout.write("%s" % charset[(n - 1) % modulo])
print " n= %d, %d * %d + %d, pfactor(n - 1) = (%s)" % (
n,
(n - 1) / modulo,
modulo, (n - 1) % modulo,
str(pfactor(n - 1)),)
s /= n
sys.stdout.write("\n")
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