from functools import reduce
import re

initial_string = input()

separators = (',', ';', ':', '.', '!', '(', ')', '"', '\'', '\\', '/', '[', ']')

initial_string = reduce(lambda s, sep: s.replace(sep, ' '), separators, initial_string)

words_list = initial_string.split()


def run(word):
    chars = re.compile('[@_!#$%^&*()<>?/|}{~:]')
    if chars.search(word) == None:
        return False
    else:
        return True

lower_list = []
upper_list = []
mixed_list = []


for word in words_list:
    if word.islower():
        lower_list.append(word)
    elif word.isupper() and not run(word):
        upper_list.append(word)
    else:
        mixed_list.append(word)

print("Lower-case: " + ", ".join(lower_list))
print("Mixed-case: " + ", ".join(mixed_list))
print("Upper-case: " + ", ".join(upper_list))