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 cnt = 0;
        for (int i=0;i<N;i++) {
            int X = sc.nextInt();
            int Y = sc.nextInt();

            if ((long)D*D >= (long)X*X+(long)Y*Y) cnt++;
        }
        System.out.println(cnt);
    }
} 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 cnt = 0;
        for (int i=0;i<N;i++) {
            int X = sc.nextInt();
            int Y = sc.nextInt();

            if ((long)D*D >= (long)X*X+(long)Y*Y) 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++) {
            int X = sc.nextInt();
            int Y = sc.nextInt();

            if ((long)D*D >= (long)X*X+(long)Y*Y) 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++) {
            int X = sc.nextInt();
            int Y = sc.nextInt();

            if ((long)D*D >= (long)X*X+(long)Y*Y) 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++) {
            int X = sc.nextInt();
            int Y = sc.nextInt();

            if ((long)D*D >= (long)X*X+(long)Y*Y) cnt++;
        } int i=0; int i=0; i 0 i<N i N i++ i++ i {
            int X = sc.nextInt();
            int Y = sc.nextInt();

            if ((long)D*D >= (long)X*X+(long)Y*Y) cnt++;
        } {
            int X = sc.nextInt();
            int Y = sc.nextInt();

            if ((long)D*D >= (long)X*X+(long)Y*Y) cnt++;
        } int X = sc.nextInt(); X sc.nextInt() sc.nextInt sc int Y = sc.nextInt(); Y sc.nextInt() sc.nextInt sc if ((long)D*D >= (long)X*X+(long)Y*Y) cnt++; (long)D*D >= (long)X*X+(long)Y*Y (long)D*D (long)D D (long)X*X+(long)Y*Y (long)X*X (long)X X (long)Y*Y (long)Y Y 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++) {
            int X = sc.nextInt();
            int Y = sc.nextInt();

            if ((long)D*D >= (long)X*X+(long)Y*Y) 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++) {
            int X = sc.nextInt();
            int Y = sc.nextInt();

            if ((long)D*D >= (long)X*X+(long)Y*Y) cnt++;
        }
        System.out.println(cnt);
    }
} 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 cnt = 0;
        for (int i=0;i<N;i++) {
            int X = sc.nextInt();
            int Y = sc.nextInt();

            if ((long)D*D >= (long)X*X+(long)Y*Y) cnt++;
        }
        System.out.println(cnt);
    }
}