import java.util.Scanner;

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

	
	
}
 import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		int n = Integer.parseInt(sc.next());
		long d = Integer.parseInt(sc.next());
		long[] x = new long[n];
		long[] y = new long[n];
		for(int i = 0; i < n; i++) {
			x[i]  = Integer.parseInt(sc.next());
			y[i]  = Integer.parseInt(sc.next());
		}
		int sum = 0;
		for(int i =  0; i < n; i++) {
			if(d*d >= x[i]*x[i] + y[i]*y[i]) {
				sum++;
			}
		}
		System.out.println(sum);
	}

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

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

	
	
} Main
import java.util.Scanner;

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

	
	
}

