import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;



public class Main {

	public static void main(String[] args) {
		 FastScanner scanner =new FastScanner();
		
			int n=scanner.nextInt();
			long d=scanner.nextLong();
		int c=0;
		for(int i=0;i<n;i++) {
			long x=scanner.nextLong(),y=scanner.nextLong();
			if(d*d>=(x*x+y*y))c++;
		}
		System.out.println(c);
		    	
		    }
	static class FastScanner {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st=new StringTokenizer("");
		String next() {
			while (!st.hasMoreTokens())
				try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			return st.nextToken();
		}
		
		int nextInt() {
			return Integer.parseInt(next());
		}
		int[] readArray(int n) {
			int[] a=new int[n];
			for (int i=0; i<n; i++) a[i]=nextInt();
			return a;
		}
		long nextLong() {
			return Long.parseLong(next());
		}
}

		    
		} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io import java.util.StringTokenizer; StringTokenizer java.util public class Main {

	public static void main(String[] args) {
		 FastScanner scanner =new FastScanner();
		
			int n=scanner.nextInt();
			long d=scanner.nextLong();
		int c=0;
		for(int i=0;i<n;i++) {
			long x=scanner.nextLong(),y=scanner.nextLong();
			if(d*d>=(x*x+y*y))c++;
		}
		System.out.println(c);
		    	
		    }
	static class FastScanner {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st=new StringTokenizer("");
		String next() {
			while (!st.hasMoreTokens())
				try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			return st.nextToken();
		}
		
		int nextInt() {
			return Integer.parseInt(next());
		}
		int[] readArray(int n) {
			int[] a=new int[n];
			for (int i=0; i<n; i++) a[i]=nextInt();
			return a;
		}
		long nextLong() {
			return Long.parseLong(next());
		}
}

		    
		} Main public static void main(String[] args) {
		 FastScanner scanner =new FastScanner();
		
			int n=scanner.nextInt();
			long d=scanner.nextLong();
		int c=0;
		for(int i=0;i<n;i++) {
			long x=scanner.nextLong(),y=scanner.nextLong();
			if(d*d>=(x*x+y*y))c++;
		}
		System.out.println(c);
		    	
		    } main {
		 FastScanner scanner =new FastScanner();
		
			int n=scanner.nextInt();
			long d=scanner.nextLong();
		int c=0;
		for(int i=0;i<n;i++) {
			long x=scanner.nextLong(),y=scanner.nextLong();
			if(d*d>=(x*x+y*y))c++;
		}
		System.out.println(c);
		    	
		    } FastScanner scanner =new FastScanner(); scanner new FastScanner() int n=scanner.nextInt(); n scanner.nextInt() scanner.nextInt scanner long d=scanner.nextLong(); d scanner.nextLong() scanner.nextLong scanner int c=0; c 0 for(int i=0;i<n;i++) {
			long x=scanner.nextLong(),y=scanner.nextLong();
			if(d*d>=(x*x+y*y))c++;
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
			long x=scanner.nextLong(),y=scanner.nextLong();
			if(d*d>=(x*x+y*y))c++;
		} {
			long x=scanner.nextLong(),y=scanner.nextLong();
			if(d*d>=(x*x+y*y))c++;
		} long x=scanner.nextLong() x scanner.nextLong() scanner.nextLong scanner y=scanner.nextLong(); y scanner.nextLong() scanner.nextLong scanner if(d*d>=(x*x+y*y))c++; d*d>=(x*x+y*y) d*d d d (x*x+y*y) x*x x x y*y y y c++ c System.out.println(c) System.out.println System.out System System.out c String[] args args static class FastScanner {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st=new StringTokenizer("");
		String next() {
			while (!st.hasMoreTokens())
				try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			return st.nextToken();
		}
		
		int nextInt() {
			return Integer.parseInt(next());
		}
		int[] readArray(int n) {
			int[] a=new int[n];
			for (int i=0; i<n; i++) a[i]=nextInt();
			return a;
		}
		long nextLong() {
			return Long.parseLong(next());
		}
} FastScanner BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); br new BufferedReader(new InputStreamReader(System.in)) StringTokenizer st=new StringTokenizer(""); st new StringTokenizer("") String next() {
			while (!st.hasMoreTokens())
				try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			return st.nextToken();
		} next {
			while (!st.hasMoreTokens())
				try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			return st.nextToken();
		} while (!st.hasMoreTokens())
				try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				} !st.hasMoreTokens() st.hasMoreTokens() st.hasMoreTokens st try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				} catch (IOException e) {
					e.printStackTrace();
				} IOException e {
					e.printStackTrace();
				} e.printStackTrace() e.printStackTrace e {
					st=new StringTokenizer(br.readLine());
				} st=new StringTokenizer(br.readLine()) st new StringTokenizer(br.readLine()) return st.nextToken(); st.nextToken() st.nextToken st int nextInt() {
			return Integer.parseInt(next());
		} nextInt {
			return Integer.parseInt(next());
		} return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next int[] readArray(int n) {
			int[] a=new int[n];
			for (int i=0; i<n; i++) a[i]=nextInt();
			return a;
		} readArray {
			int[] a=new int[n];
			for (int i=0; i<n; i++) a[i]=nextInt();
			return a;
		} int[] a=new int[n]; a new int[n] n for (int i=0; i<n; i++) a[i]=nextInt(); int i=0; int i=0; i 0 i<n i n i++ i++ i a[i]=nextInt(); a[i]=nextInt() a[i] a i nextInt() nextInt return a; a int n n long nextLong() {
			return Long.parseLong(next());
		} nextLong {
			return Long.parseLong(next());
		} return Long.parseLong(next()); Long.parseLong(next()) Long.parseLong Long next() next public class Main {

	public static void main(String[] args) {
		 FastScanner scanner =new FastScanner();
		
			int n=scanner.nextInt();
			long d=scanner.nextLong();
		int c=0;
		for(int i=0;i<n;i++) {
			long x=scanner.nextLong(),y=scanner.nextLong();
			if(d*d>=(x*x+y*y))c++;
		}
		System.out.println(c);
		    	
		    }
	static class FastScanner {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st=new StringTokenizer("");
		String next() {
			while (!st.hasMoreTokens())
				try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			return st.nextToken();
		}
		
		int nextInt() {
			return Integer.parseInt(next());
		}
		int[] readArray(int n) {
			int[] a=new int[n];
			for (int i=0; i<n; i++) a[i]=nextInt();
			return a;
		}
		long nextLong() {
			return Long.parseLong(next());
		}
}

		    
		} public class Main {

	public static void main(String[] args) {
		 FastScanner scanner =new FastScanner();
		
			int n=scanner.nextInt();
			long d=scanner.nextLong();
		int c=0;
		for(int i=0;i<n;i++) {
			long x=scanner.nextLong(),y=scanner.nextLong();
			if(d*d>=(x*x+y*y))c++;
		}
		System.out.println(c);
		    	
		    }
	static class FastScanner {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st=new StringTokenizer("");
		String next() {
			while (!st.hasMoreTokens())
				try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			return st.nextToken();
		}
		
		int nextInt() {
			return Integer.parseInt(next());
		}
		int[] readArray(int n) {
			int[] a=new int[n];
			for (int i=0; i<n; i++) a[i]=nextInt();
			return a;
		}
		long nextLong() {
			return Long.parseLong(next());
		}
}

		    
		} Main
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;



public class Main {

	public static void main(String[] args) {
		 FastScanner scanner =new FastScanner();
		
			int n=scanner.nextInt();
			long d=scanner.nextLong();
		int c=0;
		for(int i=0;i<n;i++) {
			long x=scanner.nextLong(),y=scanner.nextLong();
			if(d*d>=(x*x+y*y))c++;
		}
		System.out.println(c);
		    	
		    }
	static class FastScanner {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st=new StringTokenizer("");
		String next() {
			while (!st.hasMoreTokens())
				try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			return st.nextToken();
		}
		
		int nextInt() {
			return Integer.parseInt(next());
		}
		int[] readArray(int n) {
			int[] a=new int[n];
			for (int i=0; i<n; i++) a[i]=nextInt();
			return a;
		}
		long nextLong() {
			return Long.parseLong(next());
		}
}

		    
		}