password = input()

contains_uppercase = False
contains_lowercase = False
contains_digit = False
contains_other = False
for sym in password:
    contains_digit = sym.isdigit() or contains_digit
    contains_lowercase = (sym.lower() == sym) or contains_lowercase if sym.isalpha() else contains_lowercase
    contains_uppercase = (sym.upper() == sym) or contains_uppercase if sym.isalpha() else contains_uppercase
    if not (sym.isdigit() or sym.isalpha()):
        contains_other = True
        break
if contains_uppercase and contains_digit and contains_lowercase and (not contains_other):
    print("Пароль валидный")
else:
    print("Пароль невалидный")