#!/usr/bin/python

import os, sys, string

lines = sys.stdin.readlines()

out = [];

for l in lines:
  if ( string.find( l, "MWERKS" ) != -1 ): break;
  if ( l[0] == "#" ): continue;
  
  s = string.split(l, ' ')
    
  for h in s:
    if h != '\n':
      out.append(string.atoi(h, 16))

#print out

for i in out:

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