start_password = "vzbxkghb"
# start_password = "abcdefgh"
print("Start password:", start_password)


def b26_to_int(input_string):
    result = 0
    exp = 1
    for char in input_string[::-1]:
        char_value = ord(char) - 97  # from 0 to 25
        result += char_value * exp
        exp *= 26
    return result


def int_to_b26(input_number):
    result = ""
    while input_number:
        quot, remainder = divmod(input_number, 26)
        result += chr(remainder + 97)
        input_number = quot
    return result[::-1]


def increment_password(password):
    return int_to_b26(b26_to_int(password) + 1).rjust(8, "a")


STRAIGHTS = [chr(x + 97) + chr(x + 98) + chr(x + 99) for x in range(24)]


def has_increasing_straight(password):
    for straight in STRAIGHTS:
        if straight in password:
            return True
    return False


def has_forbidden_letter(password):
    for char in ["i", "o", "l"]:
        if char in password:
            return True
    return False


PAIRS = [chr(x + 97) + chr(x + 97) for x in range(26)]


def contains_two_pairs(password):
    count_pairs = 0
    for pair in PAIRS:
        if pair in password:
            count_pairs += 1
        if count_pairs >= 2:
            return True
    return False


def validate_password(password):
    return (
        has_increasing_straight(password)
        and not has_forbidden_letter(password)
        and contains_two_pairs(password)
    )


# to_int = b26_to_int(start_password)
# print(start_password, to_int, int_to_b26(to_int))
# print(start_password, increment_password(start_password))

# for pwd in ["hijklmmn", "abbceffg", "abbcegjk", "abcdffaa", "ghjaabcc"]:
#     print(pwd)
#     print(validate_password(pwd))
#     print()

# print(STRAIGHTS)
# print(PAIRS)


while not validate_password(start_password):
    start_password = increment_password(start_password)

print(start_password)

# false guess: vzcaabcc