import java.util.Scanner;

public class Main {

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

} import java.util.Scanner; Scanner java.util public class Main {

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

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

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

} public class Main {

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

} Main
import java.util.Scanner;

public class Main {

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

}
