import java.util.Scanner;
public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner cin = new Scanner(System.in);
		int n, x1, y1, x2, y2, x, y, ans;
		while(cin.hasNext())
		{
			ans = 0;
			n = cin.nextInt();
			x1 = cin.nextInt();
			y1 = cin.nextInt();
			x2 = cin.nextInt();
			y2 = cin.nextInt();
			for(int i = 0; i < n; i++)
			{
				x = cin.nextInt();
				y = cin.nextInt();
				if(x > x1 && x < x2 && y > y1 && y < y2)ans++;
			}
			System.out.println(ans);
		}
		cin.close();
	}

}