aoc-2022-day6.py

def partN(input_data, step):

    for i, window in enumerate(
            [input_data[i:i + step] for i in range(len(input_data) - step)]):
        if len(set(window)) == step:
            return i + step

if __name__ == '__main__':

    with open('./input.txt') as f:
        inp = f.read().strip()

    print(partN(inp, 4))
    print(partN(inp, 14))