#!/usr/bin/env python
# 2023 - Advent Of Code 4

# file = 'input_example.txt'
file = 'input.txt'


accum = 0
# pylint: disable=consider-using-with
input_lines = [line.strip('\n') for line in open(file, encoding="utf-8")]

for line in input_lines:
    card = line.split(':')
    card_num = int(card[0][4:])
    winning, got = card[1].split('|')
    winning_num = [x for x in winning.split(' ') if x != '']
    # print(f'{winning_num}')
    got_num = [x for x in got.split(' ') if x != '']
    # print(f'{got_num}')
    multiply = 1
    card_score = 0
    for num in got_num:
        if num in winning_num:
            if card_score == 0:
                card_score = 1
            else:
                card_score *= 2
    print(f'{card_num}: {card_score}')
    accum += card_score

print(f"sum: {accum}")