task10

pwd = input()

contains_upper_letter = False
contains_lowwer_letter = False
contains_digit = False
contains_any_char = False
for ch in pwd:
    if not contains_upper_letter:
        contains_upper_letter = str.isupper(ch)
    if not contains_lowwer_letter:
        contains_lowwer_letter = str.islower(ch)
    if not contains_digit:
        contains_digit = str.isdigit(ch)
    if not contains_any_char:
        contains_any_char = not (str.isdigit(ch) or str.isalpha(ch))

if contains_upper_letter and contains_lowwer_letter and contains_digit and not contains_any_char:
    print("Пароль валидный")
else:
    print("Пароль невалидный")