import string

password = input()
have_lowercase_char = False
have_uppercase_char = False
have_digit_char = False
have_special_char = False
have_valid_length = False

special_chars = "$#@"

for char in password:
    if char in string.ascii_lowercase:
        have_lowercase_char = True
    elif char in string.ascii_uppercase:
        have_uppercase_char = True
    elif char in string.digits:
        have_digit_char = True
    elif char in special_chars:
        have_special_char = True

if 6 <= len(password) <= 16:
    have_valid_length = True

if have_lowercase_char and have_uppercase_char and have_digit_char and have_special_char and have_valid_length:
    print("YES")
else:
    print("NO")