import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		
		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 count=0;
		double dis = 0;
		
		for(int i=0; i < n; i++) {
			dis = Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]);
			if(dis <= d) {
				count++;
			}
		}
		
		System.out.println(count);
		
	}

} 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();
		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 count=0;
		double dis = 0;
		
		for(int i=0; i < n; i++) {
			dis = Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]);
			if(dis <= d) {
				count++;
			}
		}
		
		System.out.println(count);
		
	}

} Main public static void main(String[] args) {
		
		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 count=0;
		double dis = 0;
		
		for(int i=0; i < n; i++) {
			dis = Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]);
			if(dis <= d) {
				count++;
			}
		}
		
		System.out.println(count);
		
	} main {
		
		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 count=0;
		double dis = 0;
		
		for(int i=0; i < n; i++) {
			dis = Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]);
			if(dis <= d) {
				count++;
			}
		}
		
		System.out.println(count);
		
	} 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 count=0; count 0 double dis = 0; dis 0 for(int i=0; i < n; i++) {
			dis = Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]);
			if(dis <= d) {
				count++;
			}
		} int i=0; int i=0; i 0 i < n i n i++ i++ i {
			dis = Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]);
			if(dis <= d) {
				count++;
			}
		} {
			dis = Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]);
			if(dis <= d) {
				count++;
			}
		} dis = Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]) dis Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]) Math.sqrt Math (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 if(dis <= d) {
				count++;
			} dis <= d dis d {
				count++;
			} count++ count System.out.println(count) System.out.println System.out System System.out count 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[] 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 count=0;
		double dis = 0;
		
		for(int i=0; i < n; i++) {
			dis = Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]);
			if(dis <= d) {
				count++;
			}
		}
		
		System.out.println(count);
		
	}

} public class Main {

	public static void main(String[] args) {
		
		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 count=0;
		double dis = 0;
		
		for(int i=0; i < n; i++) {
			dis = Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]);
			if(dis <= d) {
				count++;
			}
		}
		
		System.out.println(count);
		
	}

} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		
		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 count=0;
		double dis = 0;
		
		for(int i=0; i < n; i++) {
			dis = Math.sqrt((long)x[i]*x[i] + (long)y[i]*y[i]);
			if(dis <= d) {
				count++;
			}
		}
		
		System.out.println(count);
		
	}

}
