  import 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 count = 0;
        for (int i = 0; i < N; i++) {
            double X = sc.nextDouble();
            double Y = sc.nextDouble();
            double distance = Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2));
            if (distance <= D)
                count++;
        }
        sc.close();
 
        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 D = sc.nextInt();
        int count = 0;
        for (int i = 0; i < N; i++) {
            double X = sc.nextDouble();
            double Y = sc.nextDouble();
            double distance = Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2));
            if (distance <= D)
                count++;
        }
        sc.close();
 
        System.out.println(count);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int D = sc.nextInt();
        int count = 0;
        for (int i = 0; i < N; i++) {
            double X = sc.nextDouble();
            double Y = sc.nextDouble();
            double distance = Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2));
            if (distance <= D)
                count++;
        }
        sc.close();
 
        System.out.println(count);
    } main {
        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int D = sc.nextInt();
        int count = 0;
        for (int i = 0; i < N; i++) {
            double X = sc.nextDouble();
            double Y = sc.nextDouble();
            double distance = Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2));
            if (distance <= D)
                count++;
        }
        sc.close();
 
        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 D = sc.nextInt(); D sc.nextInt() sc.nextInt sc int count = 0; count 0 for (int i = 0; i < N; i++) {
            double X = sc.nextDouble();
            double Y = sc.nextDouble();
            double distance = Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2));
            if (distance <= D)
                count++;
        } int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
            double X = sc.nextDouble();
            double Y = sc.nextDouble();
            double distance = Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2));
            if (distance <= D)
                count++;
        } {
            double X = sc.nextDouble();
            double Y = sc.nextDouble();
            double distance = Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2));
            if (distance <= D)
                count++;
        } double X = sc.nextDouble(); X sc.nextDouble() sc.nextDouble sc double Y = sc.nextDouble(); Y sc.nextDouble() sc.nextDouble sc double distance = Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2)); distance Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2)) Math.sqrt Math Math.pow(X, 2) + Math.pow(Y, 2) Math.pow(X, 2) Math.pow Math X 2 Math.pow(Y, 2) Math.pow Math Y 2 if (distance <= D)
                count++; distance <= D distance D count++ count sc.close() sc.close sc 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 D = sc.nextInt();
        int count = 0;
        for (int i = 0; i < N; i++) {
            double X = sc.nextDouble();
            double Y = sc.nextDouble();
            double distance = Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2));
            if (distance <= D)
                count++;
        }
        sc.close();
 
        System.out.println(count);
    }
} public class Main {
 
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int D = sc.nextInt();
        int count = 0;
        for (int i = 0; i < N; i++) {
            double X = sc.nextDouble();
            double Y = sc.nextDouble();
            double distance = Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2));
            if (distance <= D)
                count++;
        }
        sc.close();
 
        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 D = sc.nextInt();
        int count = 0;
        for (int i = 0; i < N; i++) {
            double X = sc.nextDouble();
            double Y = sc.nextDouble();
            double distance = Math.sqrt(Math.pow(X, 2) + Math.pow(Y, 2));
            if (distance <= D)
                count++;
        }
        sc.close();
 
        System.out.println(count);
    }
}