import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        short n = Short.parseShort(s.nextLine());
        String [] A = new String[n];
        short c = 0;
        for(short i = 0; i < n; i++) {
            A[i] = s.nextLine();
        }
        for(short i = 0; i < n; i++) {
            String b = s.nextLine();
            if(A[i].equals(b))
                c++;
        }
        System.out.println(c);
    }
}