source_code: import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStreamReader;
  import java.util.ArrayList;
  
  
  public class JavaApplication2 {
  
      
      public static void main(String[] args) throws IOException {
       
          BufferedReader sc= new BufferedReader(new InputStreamReader(System.in));
          int n = Integer.parseInt(sc.readLine().split(" ")[0]);
          ArrayList<String> tshr = new ArrayList<>(n);
          for (int i = 0; i < n; i++) {
              tshr.add(sc.readLine());
          }
          for (int i = 0; i < n; i++) {
              tshr.remove(sc.readLine());
          }
          System.out.println(tshr.size());
          
          
          
          
          
          
      }
      
  }