Keygen for a University Exercise

bsrn.py

__author__ = 'sirmonkey'

import httplib
import re

addr = "m.andapp.de"
doc = "/br/ha4.php?mat="
conn = httplib.HTTPConnection(addr)
pattern = 'Antwort:(.+?)<'
for i in range(70349800, 70349819):
    conn.request("GET", doc + str(i))
    response = conn.getresponse()
    result = re.search(pattern, response.read()).group(1)
    test = (i - 7) % 73
    print "mat = {} : Antwort = {} -> Test {}".format(i, result, test)
conn.close()