//https://www.hackerrank.com/contests/2014-icpc-northwestern-european-regional-practice/challenges/judging-troubles

import java.io.*;

import java.util.*;

public class Solution {

public static void main(String[] args) throws IOException {

BufferedReader ob = new BufferedReader(new InputStreamReader(System.in));

int n = Integer.parseInt(ob.readLine());

Map<String, Integer> map1 = new HashMap<>();

int other = 0;

for (int i = 0; i < n; i++) {

String item = ob.readLine();

if (map1.get(item) != null) {

map1.put(item, (Integer) map1.get(item) + 1);

} else {

map1.put(item, 1);

}

}

Map<String, Integer> map2 = new HashMap<>();

for (int i = 0; i < n; i++) {

String item = ob.readLine();

if (map2.get(item) != null) {

map2.put(item, (Integer) map2.get(item) + 1);

} else {

map2.put(item, 1);

}

}

int result = 0;

for (Map.Entry<String, Integer> entry : map1.entrySet())

{

Integer value = map1.get(entry.getKey()) != null ? map1.get(entry.getKey()) : 0;

Integer value1 = map2.get(entry.getKey()) != null ? map2.get(entry.getKey()) : 0;

if (value > value1) value = value1;

result += value;

}

System.out.println(result);

}

}