3DS CTF 2017 - Bit Map

from __future__ import print_function
from bs4 import BeautifulSoup

with open('index.html', 'r') as f:
    html = f.read()

soup = BeautifulSoup(html, 'html.parser')

tmp = []

for e in soup.find_all('td'):
    tmp.append(e.get('bgcolor'))

r = ""
for bg in tmp:
    r = r + bg[1:].decode('hex')

if '3DS' in r:
    idx = r.index('3DS')
    while not r[idx] == '}':
        print(r[idx], end='')
        idx = idx + 1
    print('}')