import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int d = sc.nextInt();
        int cnt = 0;
        for (int i = 0; i < n; i++) {
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            if (Math.sqrt(x * x + y * y) <= d) {
                cnt++;
            }
        }
        System.out.println(cnt);
    }

} 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();
        int d = sc.nextInt();
        int cnt = 0;
        for (int i = 0; i < n; i++) {
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            if (Math.sqrt(x * x + y * y) <= d) {
                cnt++;
            }
        }
        System.out.println(cnt);
    }

} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int d = sc.nextInt();
        int cnt = 0;
        for (int i = 0; i < n; i++) {
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            if (Math.sqrt(x * x + y * y) <= d) {
                cnt++;
            }
        }
        System.out.println(cnt);
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int d = sc.nextInt();
        int cnt = 0;
        for (int i = 0; i < n; i++) {
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            if (Math.sqrt(x * x + y * y) <= d) {
                cnt++;
            }
        }
        System.out.println(cnt);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int d = sc.nextInt(); d sc.nextInt() sc.nextInt sc int cnt = 0; cnt 0 for (int i = 0; i < n; i++) {
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            if (Math.sqrt(x * x + y * y) <= d) {
                cnt++;
            }
        } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            if (Math.sqrt(x * x + y * y) <= d) {
                cnt++;
            }
        } {
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            if (Math.sqrt(x * x + y * y) <= d) {
                cnt++;
            }
        } double x = sc.nextDouble(); x sc.nextDouble() sc.nextDouble sc double y = sc.nextDouble(); y sc.nextDouble() sc.nextDouble sc if (Math.sqrt(x * x + y * y) <= d) {
                cnt++;
            } 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 d {
                cnt++;
            } cnt++ cnt System.out.println(cnt) System.out.println System.out System System.out cnt String[] args args public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int d = sc.nextInt();
        int cnt = 0;
        for (int i = 0; i < n; i++) {
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            if (Math.sqrt(x * x + y * y) <= d) {
                cnt++;
            }
        }
        System.out.println(cnt);
    }

} public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int d = sc.nextInt();
        int cnt = 0;
        for (int i = 0; i < n; i++) {
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            if (Math.sqrt(x * x + y * y) <= d) {
                cnt++;
            }
        }
        System.out.println(cnt);
    }

} Main
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int d = sc.nextInt();
        int cnt = 0;
        for (int i = 0; i < n; i++) {
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            if (Math.sqrt(x * x + y * y) <= d) {
                cnt++;
            }
        }
        System.out.println(cnt);
    }

}
