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