#include <bits/stdc++.h>
using LL = long long;

int n;
std::unordered_set<std::string> occ;
std::unordered_set<std::string> dict;
int main() {
	std::ios::sync_with_stdio(false); std::cin.tie(nullptr);
	
	n = 0;
	int ans = 0;
	std::string str;
	while(1) {
		std::cin >> str;

		if(isdigit(str[0])) {
			n = std::stoi(str);
			break;
		}

		str[0] = tolower(str[0]);
		while(!isalpha(str.back())) str.pop_back();

		occ.insert(str);
	}

	ans = occ.size();

	for(int i = 1; i <= n; i++) {
		std::cin >> str;
		if(dict.count(str)) continue;
		if(occ.count(str)) --ans;
		dict.insert(str);
	}

	std::cout << ans << "\n";
	return 0;
}