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.nextLong();
		int count =0;
		for (int i =0;i<n;i++) {
			long x = sc.nextLong();
			long y =sc.nextLong();
			double power = (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2)));
			if(x*x+y*y<=d*d) {
				count++;}}
		System.out.println(count);

	}

} 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.nextLong();
		int count =0;
		for (int i =0;i<n;i++) {
			long x = sc.nextLong();
			long y =sc.nextLong();
			double power = (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2)));
			if(x*x+y*y<=d*d) {
				count++;}}
		System.out.println(count);

	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		long d = sc.nextLong();
		int count =0;
		for (int i =0;i<n;i++) {
			long x = sc.nextLong();
			long y =sc.nextLong();
			double power = (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2)));
			if(x*x+y*y<=d*d) {
				count++;}}
		System.out.println(count);

	} main {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		long d = sc.nextLong();
		int count =0;
		for (int i =0;i<n;i++) {
			long x = sc.nextLong();
			long y =sc.nextLong();
			double power = (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2)));
			if(x*x+y*y<=d*d) {
				count++;}}
		System.out.println(count);

	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc long d = sc.nextLong(); d sc.nextLong() sc.nextLong sc int count =0; count 0 for (int i =0;i<n;i++) {
			long x = sc.nextLong();
			long y =sc.nextLong();
			double power = (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2)));
			if(x*x+y*y<=d*d) {
				count++;}} int i =0; int i =0; i 0 i<n i n i++ i++ i {
			long x = sc.nextLong();
			long y =sc.nextLong();
			double power = (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2)));
			if(x*x+y*y<=d*d) {
				count++;}} {
			long x = sc.nextLong();
			long y =sc.nextLong();
			double power = (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2)));
			if(x*x+y*y<=d*d) {
				count++;}} long x = sc.nextLong(); x sc.nextLong() sc.nextLong sc long y =sc.nextLong(); y sc.nextLong() sc.nextLong sc double power = (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2))); power (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2))) Math.sqrt Math Math.pow(x, 2) +Math.pow(y, 2) Math.pow(x, 2) Math.pow Math x 2 Math.pow(y, 2) Math.pow Math y 2 if(x*x+y*y<=d*d) {
				count++;} x*x+y*y<=d*d x*x+y*y x*x x x y*y y y d*d d d {
				count++;} count++ count System.out.println(count) System.out.println System.out System System.out count 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.nextLong();
		int count =0;
		for (int i =0;i<n;i++) {
			long x = sc.nextLong();
			long y =sc.nextLong();
			double power = (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2)));
			if(x*x+y*y<=d*d) {
				count++;}}
		System.out.println(count);

	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		long d = sc.nextLong();
		int count =0;
		for (int i =0;i<n;i++) {
			long x = sc.nextLong();
			long y =sc.nextLong();
			double power = (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2)));
			if(x*x+y*y<=d*d) {
				count++;}}
		System.out.println(count);

	}

} 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.nextLong();
		int count =0;
		for (int i =0;i<n;i++) {
			long x = sc.nextLong();
			long y =sc.nextLong();
			double power = (Math.sqrt(Math.pow(x, 2) +Math.pow(y, 2)));
			if(x*x+y*y<=d*d) {
				count++;}}
		System.out.println(count);

	}

}
