import math

with open('updates.txt', 'r') as f:
    updates = f.read().splitlines()

with open('rules.txt', 'r') as f:
    rules = f.read().splitlines()

good_updates = []

middle_page_count = 0

for update in updates:
    good_update = False
    for rule in rules:
        num_a, num_b = rule.split('|')
        if num_a in update and num_b in update:
            if update.find(num_a) < update.find(num_b):
                good_update = True

            else:
                good_update = False
                break

    if good_update:
        good_updates.append(update)

for update in good_updates:
    update_parse = list(map(int, update.split(',')))
    middle_page_count += update_parse[math.floor(len(update_parse) / 2)]

print(middle_page_count)