
import java.util.*;

public class Main {

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