#include <algorithm>
#include <iostream>
#include <string>
#include <map>

using namespace std;

int main()
{
    int n, i, r;

    map<string, int>:: iterator it;
    map<string, int> a1, a2;
    string aux;

    a1.clear();
    a2.clear();

    cin >> n;

    for (i = 0; i < n; i++) {
         cin >> aux;
         a1[aux]++;
    }

    for (i = 0; i < n; i++) {
         cin >> aux;
         a2[aux]++;
    }

    r = 0;

    for (it = a1.begin(); it != a1.end(); it++)
        r += min(it->second, a2[it->first]);

    cout << r;
    return 0;
}