import os

input = open(os.path.dirname(__file__) +
             "/input.txt", "r").read()


def findUniq(length: int):
    for i in range(len(input)):
        if len(set(input[i:i+length])) == length:
            return i+length
    return -1


print("First answer: " + str(findUniq(4)))
print("Second answer: " + str(findUniq(14)))