import java.util.Scanner;
import java.util.Arrays;

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

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