class DailyChallenge:
    def __init__(self, day):
        self.day = day
    
    def _part1(self):
        return "NOT IMPLEMENTED YET"
    
    def _part2(self):
        return "NOT IMPLEMENTED YET"

    def save_christmas(self):
        print(f"Day {self.day}:")
        print(f"    Part One: {self._part1()}")
        print(f"    Part Two: {self._part2()}")