#!/bin/python

    # faded blue bags contain 0 other bags.
    # dotted black bags contain 0 other bags.
    # vibrant plum bags contain 11 other bags: 5 faded blue bags and 6 dotted black bags.
    # dark olive bags contain 7 other bags: 3 faded blue bags and 4 dotted black bags.
    # shiny gold bags contain 3 other bags: 1 dark olive bag and 2 vibrant plume bags
    
    # 7 + 2*11

def check(bag, rules):
    result = 0
    for needed_bag, amount in rules[bag].items():
        if rules[needed_bag] == {}:
            result += amount
        else:
            result += amount + amount * check(needed_bag, rules)

    return result

# $color bags contain {$number $color bags,}*x

# color: {colors}

with open("input", 'r') as input:
    rules = {}
    for line in input:
        line = line.strip()
        parts = line.split(" bags contain ")
        key = parts[0]
        value = {}

        parts = parts[1].strip(".").split(", ")
        
        for part in parts:
            if part == "no other bags":
                break;
            bag_parts = part.split(" ", 1)
            value[bag_parts[1].replace("bags", "").replace("bag", "").strip()] =  int(bag_parts[0])

        rules[key] = value

    
    print(check("shiny gold", rules))