import java.util.*;

public class Main {

    public static void main(String[] args) {
        exec();
    }

    static void exec() {
        Scanner sc = new Scanner(System.in);
        long n = sc.nextLong();
        long d = sc.nextLong();
        int ans = 0;
        for (int i = 0; i < n; i++) {
            long x =sc.nextLong();
            long y =sc.nextLong();
            if (x*x + y*y <= d*d) {
                ans++;
            }
        }
        System.out.println(ans);
    }
} import java.util.*; util.* java public class Main {

    public static void main(String[] args) {
        exec();
    }

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

    public static void main(String[] args) {
        exec();
    }

    static void exec() {
        Scanner sc = new Scanner(System.in);
        long n = sc.nextLong();
        long d = sc.nextLong();
        int ans = 0;
        for (int i = 0; i < n; i++) {
            long x =sc.nextLong();
            long y =sc.nextLong();
            if (x*x + y*y <= d*d) {
                ans++;
            }
        }
        System.out.println(ans);
    }
} public class Main {

    public static void main(String[] args) {
        exec();
    }

    static void exec() {
        Scanner sc = new Scanner(System.in);
        long n = sc.nextLong();
        long d = sc.nextLong();
        int ans = 0;
        for (int i = 0; i < n; i++) {
            long x =sc.nextLong();
            long y =sc.nextLong();
            if (x*x + y*y <= d*d) {
                ans++;
            }
        }
        System.out.println(ans);
    }
} Main
import java.util.*;

public class Main {

    public static void main(String[] args) {
        exec();
    }

    static void exec() {
        Scanner sc = new Scanner(System.in);
        long n = sc.nextLong();
        long d = sc.nextLong();
        int ans = 0;
        for (int i = 0; i < n; i++) {
            long x =sc.nextLong();
            long y =sc.nextLong();
            if (x*x + y*y <= d*d) {
                ans++;
            }
        }
        System.out.println(ans);
    }
}