#!/usr/bin/python

import sys, re, os

r_nonprint = re.compile(r'\\x..')

def categorize(fn): 
   bytes = {}
   for byte in open(fn).read(): 
      try: bytes[byte] += 1
      except KeyError: bytes[byte] = 1
   keys = bytes.keys()
   keys.sort()
   freq = {}
   for key in keys: 
      count = bytes[key]
      if freq.has_key(count): 
         freq[count].append(key)
      else: freq[count] = [key]
   freqkeys = freq.keys()
   freqkeys.sort()
   freqkeys.reverse()
   result = ''
   for key in freqkeys: 
      for byte in freq[key]: 
         result += ('%r' % byte)[1:-1]
   result = r_nonprint.sub('.', result)[:35]
   if len(result) < 35: 
      result += ('.' * (35 - len(result)))
   return result

def main(): 
   for fn in sys.argv[1:]: 
      if os.path.isfile(fn): 
         print categorize(fn), fn

if __name__=="__main__": 
   main()