import aoclib
from collections import deque


inp = aoclib.get_input(6)


def find_marker(message, after=4):
    buf = deque([], maxlen=after)
    for i, letter in enumerate(message, 1):
        buf.append(letter)
        if len(buf) == after and len(set(buf)) == after:
            return i


def part1():
    return find_marker(inp)


def part2():
    return find_marker(inp, 14)


aoclib.main(part1, part2)