source_code: 
  import java.io.BufferedReader;
  import java.io.InputStreamReader;
  import java.util.HashMap;
  
  public class CodehorsesT_shirts {
  
      public static void main(String[] args) throws Exception {
          BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
          int n = Integer.parseInt(reader.readLine());
          HashMap<String, Integer> map = new HashMap<String, Integer>();
          String input;
          for (int i = 0; i < n; i++) {
              input = reader.readLine();
              if (map.containsKey(input)) {
                  map.put(input, map.get(input) + 1);
              } else {
                  map.put(input, 1);
              }
          }
          int change = 0;
          for (int i = 0; i < n; i++) {
              input = reader.readLine();
              if (map.containsKey(input)) {
                  map.put(input, map.get(input) - 1);
              } else {
                  map.put(input, -1);
              }
          }
          for (int x : map.values()) {
              change += Math.abs(x);
          }
          System.out.println(change/2);
      }
  
  }
  