#!/usr/bin/env python3
from collections import defaultdict

lines = (x.strip() for x in open("input.txt"))
result = 0
tickets = defaultdict(int, {i: 1 for i in range(0)})

for idx, line in enumerate(lines):
    tickets[idx] += 1
    winnings = set(int(x.strip()) for x in line[line.find(":")+1:line.find("|")].split(" ") if len(x))
    you_have = set(int(x.strip()) for x in line[line.find("|")+1:].split(" ") if len(x))
    num_overlap = len(you_have.intersection(winnings))
    for i in range(idx+1, idx+1+num_overlap):
        tickets[i] += tickets[idx]

print(sum(tickets.values()))