#!/usr/bin/env python

import argparse
import hashlib

def main(args):
    seq = 0
    password = "        "

    while True:
        char_input = "{}{}".format(args.input, seq)
        m = hashlib.md5()
        m.update(char_input.encode('utf-8'))
        h = m.hexdigest()
        if h.startswith('00000'):
            pos = h[5]
            if pos not in "01234567":
                seq += 1
                continue
            pos = int(pos)
            char = h[6]
            if password[pos] == " ":
                password = password[:pos] + char + password[(pos+1):]
                print("id: {}, pass: {}, hash: {}".format(seq, password, h))
        if " " not in password:
            break;
        seq += 1
    print(password)

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description='AdventOfCode 2016 Day 01')
    parser.add_argument('--input', '-i', action='store',  required=True, help='input file')
    args = parser.parse_args()

    main(args)