text: import re
  
  file = open('./input', 'r')
  
  lines = file.readlines()
  lines = list(map(lambda line: line[:-1], lines))
  
  bag_types = {}
  
  for line in lines:
    [parent_color, children] = line.split(' bags contain ')
    bag_types[parent_color] = {}
    if children != 'no other bags.':
      for child in children[:-1].split(', '):
        num_child = int(child[0])
        child_color = ' '.join(child.split(' ')[1:-1])
        bag_types[parent_color][child_color] = num_child
  
  def count_bags_inside(color):
    # print(color)
    count = 1
    for child in bag_types[color]:
      count += bag_types[color][child] * count_bags_inside(child)
    # print(count)
    return count
  
  print(count_bags_inside('shiny gold') - 1)
  