import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		 Scanner sc = new Scanner(System.in);
		  int n = sc.nextInt();
		  int d = sc.nextInt();
		  int ans = 0;
		  for(int i=0;i<n;i++) {
			  double a = sc.nextInt();
			  double b = sc.nextInt();
			  if(Math.sqrt(a*a+b*b)<=d) {
				  ans++;
			  }
		  }
		  System.out.println(ans);
	}

} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		 Scanner sc = new Scanner(System.in);
		  int n = sc.nextInt();
		  int d = sc.nextInt();
		  int ans = 0;
		  for(int i=0;i<n;i++) {
			  double a = sc.nextInt();
			  double b = sc.nextInt();
			  if(Math.sqrt(a*a+b*b)<=d) {
				  ans++;
			  }
		  }
		  System.out.println(ans);
	}

} Main public static void main(String[] args) {
		 Scanner sc = new Scanner(System.in);
		  int n = sc.nextInt();
		  int d = sc.nextInt();
		  int ans = 0;
		  for(int i=0;i<n;i++) {
			  double a = sc.nextInt();
			  double b = sc.nextInt();
			  if(Math.sqrt(a*a+b*b)<=d) {
				  ans++;
			  }
		  }
		  System.out.println(ans);
	} main {
		 Scanner sc = new Scanner(System.in);
		  int n = sc.nextInt();
		  int d = sc.nextInt();
		  int ans = 0;
		  for(int i=0;i<n;i++) {
			  double a = sc.nextInt();
			  double b = sc.nextInt();
			  if(Math.sqrt(a*a+b*b)<=d) {
				  ans++;
			  }
		  }
		  System.out.println(ans);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int d = sc.nextInt(); d sc.nextInt() sc.nextInt sc int ans = 0; ans 0 for(int i=0;i<n;i++) {
			  double a = sc.nextInt();
			  double b = sc.nextInt();
			  if(Math.sqrt(a*a+b*b)<=d) {
				  ans++;
			  }
		  } int i=0; int i=0; i 0 i<n i n i++ i++ i {
			  double a = sc.nextInt();
			  double b = sc.nextInt();
			  if(Math.sqrt(a*a+b*b)<=d) {
				  ans++;
			  }
		  } {
			  double a = sc.nextInt();
			  double b = sc.nextInt();
			  if(Math.sqrt(a*a+b*b)<=d) {
				  ans++;
			  }
		  } double a = sc.nextInt(); a sc.nextInt() sc.nextInt sc double b = sc.nextInt(); b sc.nextInt() sc.nextInt sc if(Math.sqrt(a*a+b*b)<=d) {
				  ans++;
			  } Math.sqrt(a*a+b*b)<=d Math.sqrt(a*a+b*b) Math.sqrt Math a*a+b*b a*a a a b*b b b d {
				  ans++;
			  } ans++ ans System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main {

	public static void main(String[] args) {
		 Scanner sc = new Scanner(System.in);
		  int n = sc.nextInt();
		  int d = sc.nextInt();
		  int ans = 0;
		  for(int i=0;i<n;i++) {
			  double a = sc.nextInt();
			  double b = sc.nextInt();
			  if(Math.sqrt(a*a+b*b)<=d) {
				  ans++;
			  }
		  }
		  System.out.println(ans);
	}

} public class Main {

	public static void main(String[] args) {
		 Scanner sc = new Scanner(System.in);
		  int n = sc.nextInt();
		  int d = sc.nextInt();
		  int ans = 0;
		  for(int i=0;i<n;i++) {
			  double a = sc.nextInt();
			  double b = sc.nextInt();
			  if(Math.sqrt(a*a+b*b)<=d) {
				  ans++;
			  }
		  }
		  System.out.println(ans);
	}

} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		 Scanner sc = new Scanner(System.in);
		  int n = sc.nextInt();
		  int d = sc.nextInt();
		  int ans = 0;
		  for(int i=0;i<n;i++) {
			  double a = sc.nextInt();
			  double b = sc.nextInt();
			  if(Math.sqrt(a*a+b*b)<=d) {
				  ans++;
			  }
		  }
		  System.out.println(ans);
	}

}