def check_id(start_id, end_id):
    false_ids = []
    for id in range(int(start_id), int(end_id)+1):
        id_str = str(id)
        id_str_len = len(id_str)

        for substr_len in range(1,(id_str_len//2)+1):
            if id_str_len % substr_len > 0:
                # Substring being checked must fit a whole number of times
                continue

            dup = False
            # Substring position is determined by the amount of times the substring fits in the string
            # That makes up the range to be checked (as multipliet with the substring length)
            for substr_pos in range(1, id_str_len // substr_len):
                h1 = id_str[:substr_len]

                # Get the substring at right position, and only with size of substring
                h2 = id_str[substr_len*substr_pos:][:substr_len]
                if h1 != h2:
                    dup = False
                    break
                else:
                    dup = True

            if dup:
                false_ids.append(id)
                break


    return false_ids



def read_input(filename):
    id_ranges = []
    for line in open(filename).read().splitlines():
        for id_range in line.split(","):
            start = id_range.split("-")[0]
            end = id_range.split("-")[1]

            id_ranges.append((start,end))
    return id_ranges


# filename = "day02/my_example_input" #
# filename = "day02/example_input" # 4174379265
filename = "day02/input" # 44143124633
id_ranges = read_input(filename)


adding = 0
for id_range in id_ranges:
    for false_id in check_id(id_range[0], id_range[1]):
        adding += false_id


print(f"Added total of false IDs: {adding}")