import re
import sys

def binary_to_char(binary):
    position = int('0b' + binary, 2)
    return alphabet[position-1]

alphabet = [
        'А','Б','В','Г','Д','Е','Ё','Ж','З','И','Й',
        'К','Л','М','Н','О','П','Р','С','Т','У','Ф',
        'Х','Ц','Ч','Ш','Щ','Ъ','Ы','Ь','Э','Ю','Я'
    ]
    
message = sys.stdin.read()

decoded_message = re.sub( '(\d+)\.', lambda b: binary_to_char(b.group(1)), message )

print (decoded_message)