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.nextInt();
      double y = sc.nextInt();
      double dis = Math.sqrt(Math.pow(x,2)+Math.pow(y,2));
      if(dis<=d){
        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 d = sc.nextInt();
    int count = 0;
    for(int i=0;i<n;i++){
      double x = sc.nextInt();
      double y = sc.nextInt();
      double dis = Math.sqrt(Math.pow(x,2)+Math.pow(y,2));
      if(dis<=d){
        count++;
      }
    }
      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.nextInt();
      double y = sc.nextInt();
      double dis = Math.sqrt(Math.pow(x,2)+Math.pow(y,2));
      if(dis<=d){
        count++;
      }
    }
      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.nextInt();
      double y = sc.nextInt();
      double dis = Math.sqrt(Math.pow(x,2)+Math.pow(y,2));
      if(dis<=d){
        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 d = sc.nextInt(); d sc.nextInt() sc.nextInt sc int count = 0; count 0 for(int i=0;i<n;i++){
      double x = sc.nextInt();
      double y = sc.nextInt();
      double dis = Math.sqrt(Math.pow(x,2)+Math.pow(y,2));
      if(dis<=d){
        count++;
      }
    } int i=0; int i=0; i 0 i<n i n i++ i++ i {
      double x = sc.nextInt();
      double y = sc.nextInt();
      double dis = Math.sqrt(Math.pow(x,2)+Math.pow(y,2));
      if(dis<=d){
        count++;
      }
    } {
      double x = sc.nextInt();
      double y = sc.nextInt();
      double dis = Math.sqrt(Math.pow(x,2)+Math.pow(y,2));
      if(dis<=d){
        count++;
      }
    } double x = sc.nextInt(); x sc.nextInt() sc.nextInt sc double y = sc.nextInt(); y sc.nextInt() sc.nextInt sc double dis = Math.sqrt(Math.pow(x,2)+Math.pow(y,2)); dis 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(dis<=d){
        count++;
      } dis<=d dis d {
        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 d = sc.nextInt();
    int count = 0;
    for(int i=0;i<n;i++){
      double x = sc.nextInt();
      double y = sc.nextInt();
      double dis = Math.sqrt(Math.pow(x,2)+Math.pow(y,2));
      if(dis<=d){
        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 d = sc.nextInt();
    int count = 0;
    for(int i=0;i<n;i++){
      double x = sc.nextInt();
      double y = sc.nextInt();
      double dis = Math.sqrt(Math.pow(x,2)+Math.pow(y,2));
      if(dis<=d){
        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 d = sc.nextInt();
    int count = 0;
    for(int i=0;i<n;i++){
      double x = sc.nextInt();
      double y = sc.nextInt();
      double dis = Math.sqrt(Math.pow(x,2)+Math.pow(y,2));
      if(dis<=d){
        count++;
      }
    }
      System.out.println(count);
  }
}