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 = sc.nextInt();
		long[] x=new long[n];
		long[] y=new long[n];
		for(int i=0;i<n;i++){
			x[i]=sc.nextLong();
			y[i]=sc.nextLong();
		}
		int ans = 0;
		for (int i = 0; i < n; i++) {
			if(d*d>=(x[i]*x[i]+y[i]*y[i])){
				ans++;
			}
		}
		System.out.println(""+ans);

	}

} 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 = sc.nextInt();
		long[] x=new long[n];
		long[] y=new long[n];
		for(int i=0;i<n;i++){
			x[i]=sc.nextLong();
			y[i]=sc.nextLong();
		}
		int ans = 0;
		for (int i = 0; i < n; i++) {
			if(d*d>=(x[i]*x[i]+y[i]*y[i])){
				ans++;
			}
		}
		System.out.println(""+ans);

	}

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

	} main {
		Scanner sc = new Scanner(System.in);
		int n=sc.nextInt();
		long d = sc.nextInt();
		long[] x=new long[n];
		long[] y=new long[n];
		for(int i=0;i<n;i++){
			x[i]=sc.nextLong();
			y[i]=sc.nextLong();
		}
		int ans = 0;
		for (int i = 0; i < n; i++) {
			if(d*d>=(x[i]*x[i]+y[i]*y[i])){
				ans++;
			}
		}
		System.out.println(""+ans);

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

	}

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

	}

} 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 = sc.nextInt();
		long[] x=new long[n];
		long[] y=new long[n];
		for(int i=0;i<n;i++){
			x[i]=sc.nextLong();
			y[i]=sc.nextLong();
		}
		int ans = 0;
		for (int i = 0; i < n; i++) {
			if(d*d>=(x[i]*x[i]+y[i]*y[i])){
				ans++;
			}
		}
		System.out.println(""+ans);

	}

}