
import java.util.Scanner;

public class Main{

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        long[] a = new long[n];
        long[] b = new long[n];

        long d = sc.nextLong();
        
        for(int i = 0; i < n; i++) {
        	a[i] = sc.nextLong();
        	b[i] = sc.nextLong();
        }
        
        long D = d * d;
        
        int ans = 0;
        for(int i = 0; i < n; i++) {
        	if(D >= (a[i]*a[i] + b[i]*b[i]))
        		++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();
        long[] a = new long[n];
        long[] b = new long[n];

        long d = sc.nextLong();
        
        for(int i = 0; i < n; i++) {
        	a[i] = sc.nextLong();
        	b[i] = sc.nextLong();
        }
        
        long D = d * d;
        
        int ans = 0;
        for(int i = 0; i < n; i++) {
        	if(D >= (a[i]*a[i] + b[i]*b[i]))
        		++ans;
        }
        System.out.println(ans);
    }

} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        long[] a = new long[n];
        long[] b = new long[n];

        long d = sc.nextLong();
        
        for(int i = 0; i < n; i++) {
        	a[i] = sc.nextLong();
        	b[i] = sc.nextLong();
        }
        
        long D = d * d;
        
        int ans = 0;
        for(int i = 0; i < n; i++) {
        	if(D >= (a[i]*a[i] + b[i]*b[i]))
        		++ans;
        }
        System.out.println(ans);
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        long[] a = new long[n];
        long[] b = new long[n];

        long d = sc.nextLong();
        
        for(int i = 0; i < n; i++) {
        	a[i] = sc.nextLong();
        	b[i] = sc.nextLong();
        }
        
        long D = d * d;
        
        int ans = 0;
        for(int i = 0; i < n; i++) {
        	if(D >= (a[i]*a[i] + b[i]*b[i]))
        		++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 long[] a = new long[n]; a new long[n] n long[] b = new long[n]; b new long[n] n long d = sc.nextLong(); d sc.nextLong() sc.nextLong sc for(int i = 0; i < n; i++) {
        	a[i] = sc.nextLong();
        	b[i] = sc.nextLong();
        } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
        	a[i] = sc.nextLong();
        	b[i] = sc.nextLong();
        } {
        	a[i] = sc.nextLong();
        	b[i] = sc.nextLong();
        } a[i] = sc.nextLong() a[i] a i sc.nextLong() sc.nextLong sc b[i] = sc.nextLong() b[i] b i sc.nextLong() sc.nextLong sc long D = d * d; D d * d d d int ans = 0; ans 0 for(int i = 0; i < n; i++) {
        	if(D >= (a[i]*a[i] + b[i]*b[i]))
        		++ans;
        } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
        	if(D >= (a[i]*a[i] + b[i]*b[i]))
        		++ans;
        } {
        	if(D >= (a[i]*a[i] + b[i]*b[i]))
        		++ans;
        } if(D >= (a[i]*a[i] + b[i]*b[i]))
        		++ans; D >= (a[i]*a[i] + b[i]*b[i]) D (a[i]*a[i] + b[i]*b[i]) a[i]*a[i] a[i] a i a[i] a i b[i]*b[i] b[i] b i b[i] b i ++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();
        long[] a = new long[n];
        long[] b = new long[n];

        long d = sc.nextLong();
        
        for(int i = 0; i < n; i++) {
        	a[i] = sc.nextLong();
        	b[i] = sc.nextLong();
        }
        
        long D = d * d;
        
        int ans = 0;
        for(int i = 0; i < n; i++) {
        	if(D >= (a[i]*a[i] + b[i]*b[i]))
        		++ans;
        }
        System.out.println(ans);
    }

} public class Main{

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        long[] a = new long[n];
        long[] b = new long[n];

        long d = sc.nextLong();
        
        for(int i = 0; i < n; i++) {
        	a[i] = sc.nextLong();
        	b[i] = sc.nextLong();
        }
        
        long D = d * d;
        
        int ans = 0;
        for(int i = 0; i < n; i++) {
        	if(D >= (a[i]*a[i] + b[i]*b[i]))
        		++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();
        long[] a = new long[n];
        long[] b = new long[n];

        long d = sc.nextLong();
        
        for(int i = 0; i < n; i++) {
        	a[i] = sc.nextLong();
        	b[i] = sc.nextLong();
        }
        
        long D = d * d;
        
        int ans = 0;
        for(int i = 0; i < n; i++) {
        	if(D >= (a[i]*a[i] + b[i]*b[i]))
        		++ans;
        }
        System.out.println(ans);
    }

}
