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