Less naive Python day 18
Less naive Python day 18

bcongdon/advent_of_code_2016,bcongdon/advent_of_code_2016,bcongdon/advent_of_code_2016,bcongdon/advent_of_code_2016,bcongdon/advent_of_code_2016,bcongdon/advent_of_code_2016,bcongdon/advent_of_code_2016,bcongdon/advent_of_code_2016