import java.util.*;

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

public class Main{
	static public void main(String[] args){
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		long d=sc.nextLong();
		
		long[] x=new long[n];
		long[] y=new long[n];
		int count=0;
		for(int i=0;i<n;i++){
			x[i]=sc.nextLong();
			y[i]=sc.nextLong();
		}
		
		for(int i=0;i<n;i++){
			long num=x[i]*x[i]+y[i]*y[i];
			if(num<=d*d)count++;
		}
		System.out.println(count);
		sc.close();
		return;
	}
}