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