riddler_express_20221007.py

#!/usr/bin/env python


class Clock:
    def __init__(self, year, hour, minute, second):
        self.year = year
        self.hour = hour
        self.minute = minute
        self.second = second

    def __repr__(self):
        return f"{self.year:04} {self.hour:02}:{self.minute:02}:{self.second:02}"

    def __str__(self):
        return f"{self.year:04}{self.hour:02}{self.minute:02}{self.second:02}"

    def increment_year(self):
        self.year += 1

    def increment_hour(self):
        self.hour += 1
        if self.hour > 11:
            self.increment_year()
            self.hour = 0

    def increment_minute(self):
        self.minute += 1
        if self.minute > 59:
            self.increment_hour()
            self.minute = 0

    def increment_second(self):
        self.second += 1
        if self.second > 59:
            self.increment_minute()
            self.second = 0


def riddler():
    clock = Clock(2022, 10, 27, 12)
    while True:
        clock.increment_second()
        symbols = [x for x in str(clock)]
        if len(set(symbols)) == len(symbols):
            print(clock)
            break


if __name__ == "__main__":
    riddler()

# prints 2136 07:48:59