
import 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 count=0;
	for(int i=0;i<n;i++) {
		int x=Math.abs(sc.nextInt());
		int y=Math.abs(sc.nextInt());
		double ans2=Math.pow(x, 2)+Math.pow(y,2);
		
		double ans=Math.sqrt(ans2);
	if((double)d>=ans) {
		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();
	int d=sc.nextInt();
	int count=0;
	for(int i=0;i<n;i++) {
		int x=Math.abs(sc.nextInt());
		int y=Math.abs(sc.nextInt());
		double ans2=Math.pow(x, 2)+Math.pow(y,2);
		
		double ans=Math.sqrt(ans2);
	if((double)d>=ans) {
		count++;
	}
	
		
	}
	System.out.println(count);
	}

} Main public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
	int n=sc.nextInt();
	int d=sc.nextInt();
	int count=0;
	for(int i=0;i<n;i++) {
		int x=Math.abs(sc.nextInt());
		int y=Math.abs(sc.nextInt());
		double ans2=Math.pow(x, 2)+Math.pow(y,2);
		
		double ans=Math.sqrt(ans2);
	if((double)d>=ans) {
		count++;
	}
	
		
	}
	System.out.println(count);
	} main {
		Scanner sc=new Scanner(System.in);
	int n=sc.nextInt();
	int d=sc.nextInt();
	int count=0;
	for(int i=0;i<n;i++) {
		int x=Math.abs(sc.nextInt());
		int y=Math.abs(sc.nextInt());
		double ans2=Math.pow(x, 2)+Math.pow(y,2);
		
		double ans=Math.sqrt(ans2);
	if((double)d>=ans) {
		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 int d=sc.nextInt(); d sc.nextInt() sc.nextInt sc int count=0; count 0 for(int i=0;i<n;i++) {
		int x=Math.abs(sc.nextInt());
		int y=Math.abs(sc.nextInt());
		double ans2=Math.pow(x, 2)+Math.pow(y,2);
		
		double ans=Math.sqrt(ans2);
	if((double)d>=ans) {
		count++;
	}
	
		
	} int i=0; int i=0; i 0 i<n i n i++ i++ i {
		int x=Math.abs(sc.nextInt());
		int y=Math.abs(sc.nextInt());
		double ans2=Math.pow(x, 2)+Math.pow(y,2);
		
		double ans=Math.sqrt(ans2);
	if((double)d>=ans) {
		count++;
	}
	
		
	} {
		int x=Math.abs(sc.nextInt());
		int y=Math.abs(sc.nextInt());
		double ans2=Math.pow(x, 2)+Math.pow(y,2);
		
		double ans=Math.sqrt(ans2);
	if((double)d>=ans) {
		count++;
	}
	
		
	} int x=Math.abs(sc.nextInt()); x Math.abs(sc.nextInt()) Math.abs Math sc.nextInt() sc.nextInt sc int y=Math.abs(sc.nextInt()); y Math.abs(sc.nextInt()) Math.abs Math sc.nextInt() sc.nextInt sc double ans2=Math.pow(x, 2)+Math.pow(y,2); ans2 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 double ans=Math.sqrt(ans2); ans Math.sqrt(ans2) Math.sqrt Math ans2 if((double)d>=ans) {
		count++;
	} (double)d>=ans (double)d ans {
		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();
	int d=sc.nextInt();
	int count=0;
	for(int i=0;i<n;i++) {
		int x=Math.abs(sc.nextInt());
		int y=Math.abs(sc.nextInt());
		double ans2=Math.pow(x, 2)+Math.pow(y,2);
		
		double ans=Math.sqrt(ans2);
	if((double)d>=ans) {
		count++;
	}
	
		
	}
	System.out.println(count);
	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
	int n=sc.nextInt();
	int d=sc.nextInt();
	int count=0;
	for(int i=0;i<n;i++) {
		int x=Math.abs(sc.nextInt());
		int y=Math.abs(sc.nextInt());
		double ans2=Math.pow(x, 2)+Math.pow(y,2);
		
		double ans=Math.sqrt(ans2);
	if((double)d>=ans) {
		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();
	int d=sc.nextInt();
	int count=0;
	for(int i=0;i<n;i++) {
		int x=Math.abs(sc.nextInt());
		int y=Math.abs(sc.nextInt());
		double ans2=Math.pow(x, 2)+Math.pow(y,2);
		
		double ans=Math.sqrt(ans2);
	if((double)d>=ans) {
		count++;
	}
	
		
	}
	System.out.println(count);
	}

}
