#!/usr/bin/python

import os, sys, string

lines = sys.stdin.readlines()

out = [];

for l in lines:
  if ( string.find( l, "MWERKS" ) != -1 ): continue;
  if ( l[0] == "#" ): continue;
  if ( l[0] == "*" ): continue;  
  if ( l[0] == "}" ): continue;

  if ( len(l) < 2 ): continue;

  if ( l[1] == "*" ): continue;  

  if ( len(l) < 8 ): continue;

  if ( string.find( l, "/*" ) != -1 ): continue;
  if ( string.find( l, "|" ) != -1 ): continue; 
  if ( string.find( l, "+" ) != -1 ): continue;
 
  if ( string.find( l, "*/" ) != -1 ): continue;
  if ( string.find( l, "FILE" ) != -1 ): continue;
  if ( string.find( l, "unsigned" ) != -1 ): continue;
  if ( string.find( l, "static" ) != -1 ): continue;

  s = string.split(l, ',')

  if ( len( s ) < 2 ): continue;
    
  for h in s:
#    print "[" + h + "]"
    if ( string.find(h, "\n") == -1 ):
      out.append(string.atoi(h, 16))

for i in out:

  sys.stdout.write(chr(i));