import java.util.*;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		long d = sc.nextInt();
		d = d * d;
		int cnt = 0;
		for (int i = 0; i < N; i++) {
			long x = sc.nextInt();
			long y = sc.nextInt();
			if (d >= x * x + y * y)
				cnt++;
		}
		System.out.println(cnt);
	}
} import java.util.*; util.* java public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		long d = sc.nextInt();
		d = d * d;
		int cnt = 0;
		for (int i = 0; i < N; i++) {
			long x = sc.nextInt();
			long y = sc.nextInt();
			if (d >= x * x + y * y)
				cnt++;
		}
		System.out.println(cnt);
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		long d = sc.nextInt();
		d = d * d;
		int cnt = 0;
		for (int i = 0; i < N; i++) {
			long x = sc.nextInt();
			long y = sc.nextInt();
			if (d >= x * x + y * y)
				cnt++;
		}
		System.out.println(cnt);
	} main {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		long d = sc.nextInt();
		d = d * d;
		int cnt = 0;
		for (int i = 0; i < N; i++) {
			long x = sc.nextInt();
			long y = sc.nextInt();
			if (d >= x * x + y * y)
				cnt++;
		}
		System.out.println(cnt);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int N = sc.nextInt(); N sc.nextInt() sc.nextInt sc long d = sc.nextInt(); d sc.nextInt() sc.nextInt sc d = d * d d d * d d d int cnt = 0; cnt 0 for (int i = 0; i < N; i++) {
			long x = sc.nextInt();
			long y = sc.nextInt();
			if (d >= x * x + y * y)
				cnt++;
		} int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
			long x = sc.nextInt();
			long y = sc.nextInt();
			if (d >= x * x + y * y)
				cnt++;
		} {
			long x = sc.nextInt();
			long y = sc.nextInt();
			if (d >= x * x + y * y)
				cnt++;
		} long x = sc.nextInt(); x sc.nextInt() sc.nextInt sc long y = sc.nextInt(); y sc.nextInt() sc.nextInt sc if (d >= x * x + y * y)
				cnt++; d >= x * x + y * y d x * x + y * y x * x x x y * y y y cnt++ cnt System.out.println(cnt) System.out.println System.out System System.out cnt String[] args args public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		long d = sc.nextInt();
		d = d * d;
		int cnt = 0;
		for (int i = 0; i < N; i++) {
			long x = sc.nextInt();
			long y = sc.nextInt();
			if (d >= x * x + y * y)
				cnt++;
		}
		System.out.println(cnt);
	}
} public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		long d = sc.nextInt();
		d = d * d;
		int cnt = 0;
		for (int i = 0; i < N; i++) {
			long x = sc.nextInt();
			long y = sc.nextInt();
			if (d >= x * x + y * y)
				cnt++;
		}
		System.out.println(cnt);
	}
} Main
import java.util.*;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		long d = sc.nextInt();
		d = d * d;
		int cnt = 0;
		for (int i = 0; i < N; i++) {
			long x = sc.nextInt();
			long y = sc.nextInt();
			if (d >= x * x + y * y)
				cnt++;
		}
		System.out.println(cnt);
	}
}
