#! /usr/bin/env python
# -*- coding: utf-8 -*- 

#================================================================
# Ejercicio en: http://www.pythonchallenge.com/pc/def/map.html
# Solución: aplicar el script a la URL map ->  ocr
# Obtenemos: http://www.pythonchallenge.com/pc/def/ocr.html
#----------------------------------------------------------------
# FJA - neocipres@telefonica.net            Junio de 2007
#================================================================

te = "g fmnc wms bgblr rpylqjyrc gr zw fylb. rfyrq ufyr amknsrcpq ypc dmp. bmgle gr gl zw fylb gq glcddgagclr ylb rfyr'q ufw rfgq rcvr gq qm jmle. sqgle qrpgle.kyicrpylq() gq pcamkkclbcb. lmu ynnjw ml rfc spj."
#te = "map"
td = " "

for c in te:
    
    if ( ( c != "." ) and ( c != " " ) and ( c != "'" ) and (  c!= "(" ) and ( c != ")" ) ):
        codigo = ord( c ) + 2 # ord() devuelve el codigo del caracter
        c = chr( codigo )  # chr() devuelve el caracter correspondiente al codigo
        if c > "z":
            c = "a"
        td = td + c
    else:
        td = td + c
        
print td