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

import sys

def main():
  header()

  print("\033[1;31m [>]\033[1;m 1. Encrypt Polybe.")
  print("\033[1;31m [>]\033[1;m 2. Decrypt Polybe.")
  print("\033[1;31m [>]\033[1;m 3. Exit.")
 	
  choice_var=raw_input("\033[1;31m [>]\033[1;m Enter your choice: ")
	
  if(choice_var=="1"):
    __EnCryptPolybe__()
		 
  if(choice_var=="2"):
    __DeCryptPolybe__()

  if(choice_var=="3"):
    quit()

def header():
  print ''' ____        ____       _       _          
|  _ \ _   _|  _ \ ___ | |_   _| |__   ___ 
| |_) | | | | |_) / _ \| | | | | '_ \\ / _ \\
|  __/| |_| |  __/ (_) | | |_| | |_) |  __/
|_|    \__, |_|   \___/|_|\__, |_.__/ \___|
       |___/              |___/ '''



def __EnCryptPolybe__():
  chaine = raw_input("phrase : ")
  chaine = chaine.lower()
  chaine = chaine.replace('a', '11')
  chaine = chaine.replace('b', '12')
  chaine = chaine.replace('c', '13')
  chaine = chaine.replace('d', '14')
  chaine = chaine.replace('e', '15')
  chaine = chaine.replace('f', '21')
  chaine = chaine.replace('g', '22')
  chaine = chaine.replace('h', '23')
  chaine = chaine.replace('i', '24')
  chaine = chaine.replace('j', '24')
  chaine = chaine.replace('k', '25')
  chaine = chaine.replace('l', '31')
  chaine = chaine.replace('m', '32')
  chaine = chaine.replace('n', '33')
  chaine = chaine.replace('o', '34')
  chaine = chaine.replace('p', '35')
  chaine = chaine.replace('q', '41')
  chaine = chaine.replace('r', '42')
  chaine = chaine.replace('s', '43')
  chaine = chaine.replace('t', '44')
  chaine = chaine.replace('u', '45')
  chaine = chaine.replace('v', '51')
  chaine = chaine.replace('w', '52')
  chaine = chaine.replace('x', '53')
  chaine = chaine.replace('y', '54')
  chaine = chaine.replace('z', '55')

  print chaine
  main()

def __DeCryptPolybe__():
  chaine = raw_input("phrase : ")
  chaine = chaine.replace(" ", "xx")
  chaine1 = chaine[:2], chaine[2:4], chaine[4:6], chaine[6:8], chaine[8:10], chaine[10:12], chaine[12:14], chaine[14:16], chaine[16:18], chaine[18:20], chaine[20:22], chaine[22:24], chaine[24:26]\
, chaine[26:28], chaine[28:30], chaine[30:32], chaine[32:34], chaine[34:36], chaine[36:38], chaine[38:40], chaine[40:42], chaine[42:44], chaine[44:46], chaine[46:48], chaine[48:50], chaine[50:52]
  chaine2 = " ".join(str(i) for i in chaine1[0:len(chaine1)])

  chaine2 = chaine2.replace('xx', ' ')
  chaine2 = chaine2.replace('11', 'a')
  chaine2 = chaine2.replace('12', 'b')
  chaine2 = chaine2.replace('13', 'c')
  chaine2 = chaine2.replace('14', 'd')
  chaine2 = chaine2.replace('15', 'e')
  chaine2 = chaine2.replace('21', 'f')
  chaine2 = chaine2.replace('22', 'g')
  chaine2 = chaine2.replace('23', 'h')
  chaine2 = chaine2.replace('24', 'i')
  chaine2 = chaine2.replace('24', 'j')
  chaine2 = chaine2.replace('25', 'k')
  chaine2 = chaine2.replace('31', 'l')
  chaine2 = chaine2.replace('32', 'm')
  chaine2 = chaine2.replace('33', 'n')
  chaine2 = chaine2.replace('34', 'o')
  chaine2 = chaine2.replace('35', 'p')
  chaine2 = chaine2.replace('41', 'q')
  chaine2 = chaine2.replace('42', 'r')
  chaine2 = chaine2.replace('43', 's')
  chaine2 = chaine2.replace('44', 't')
  chaine2 = chaine2.replace('45', 'u')
  chaine2 = chaine2.replace('51', 'v')
  chaine2 = chaine2.replace('52', 'w') 
  chaine2 = chaine2.replace('53', 'x')
  chaine2 = chaine2.replace('54', 'y')
  chaine2 = chaine2.replace('55', 'z')

  print chaine2
  main()

if __name__=="__main__":
  main()