import java.util.Scanner;

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

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