#include <bits/stdc++.h>
using namespace std;

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);

	map<int, set<int>> order;

	string line;
	while (getline(cin, line) && !line.empty()) {
		istringstream l(line);
		int a, b;
		l >> a;
		l.ignore();
		l >> b;
		order[a].insert(b);
	}

	int ret = 0;
	while (getline(cin, line) && !line.empty()) {
		istringstream l(line);
		int x;
		vector<int> elems;
		while (l >> x) {
			elems.push_back(x);
			l.ignore();
		}
		for (int i = 0; i < elems.size(); i++) {
			if (order.contains(elems[i])) {
				for (int j = 0; j < i; j++) {
					if (order[elems[i]].contains(elems[j])) {
						goto next;
					}
				}
			}
		}
		ret += elems[elems.size() / 2];
	next:;
	}

	cout << ret << '\n';
}