import java.util.Scanner;
 
public class Main {
   public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
      
      int N = sc.nextInt();
	  double[] X = new double[N];
      double[] Y = new double[N];
      double D = sc.nextDouble();
      int cnt = 0;
     
      for(int i=0; i<N; i++) {
        X[i]=sc.nextDouble();
        Y[i]=sc.nextDouble();
      }
      
      for(int i=0; i<N; i++) {
        double dis = Math.sqrt(X[i]*X[i]+Y[i]*Y[i]);
        if(dis <= D) {
          cnt ++;
        } else {
          //cnt += 0;
          continue;
        }
      }
      System.out.println(cnt);
    }
} 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();
	  double[] X = new double[N];
      double[] Y = new double[N];
      double D = sc.nextDouble();
      int cnt = 0;
     
      for(int i=0; i<N; i++) {
        X[i]=sc.nextDouble();
        Y[i]=sc.nextDouble();
      }
      
      for(int i=0; i<N; i++) {
        double dis = Math.sqrt(X[i]*X[i]+Y[i]*Y[i]);
        if(dis <= D) {
          cnt ++;
        } else {
          //cnt += 0;
          continue;
        }
      }
      System.out.println(cnt);
    }
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
      
      int N = sc.nextInt();
	  double[] X = new double[N];
      double[] Y = new double[N];
      double D = sc.nextDouble();
      int cnt = 0;
     
      for(int i=0; i<N; i++) {
        X[i]=sc.nextDouble();
        Y[i]=sc.nextDouble();
      }
      
      for(int i=0; i<N; i++) {
        double dis = Math.sqrt(X[i]*X[i]+Y[i]*Y[i]);
        if(dis <= D) {
          cnt ++;
        } else {
          //cnt += 0;
          continue;
        }
      }
      System.out.println(cnt);
    } main {
		Scanner sc = new Scanner(System.in);
      
      int N = sc.nextInt();
	  double[] X = new double[N];
      double[] Y = new double[N];
      double D = sc.nextDouble();
      int cnt = 0;
     
      for(int i=0; i<N; i++) {
        X[i]=sc.nextDouble();
        Y[i]=sc.nextDouble();
      }
      
      for(int i=0; i<N; i++) {
        double dis = Math.sqrt(X[i]*X[i]+Y[i]*Y[i]);
        if(dis <= D) {
          cnt ++;
        } else {
          //cnt += 0;
          continue;
        }
      }
      System.out.println(cnt);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int N = sc.nextInt(); N sc.nextInt() sc.nextInt sc double[] X = new double[N]; X new double[N] N double[] Y = new double[N]; Y new double[N] N double D = sc.nextDouble(); D sc.nextDouble() sc.nextDouble sc int cnt = 0; cnt 0 for(int i=0; i<N; i++) {
        X[i]=sc.nextDouble();
        Y[i]=sc.nextDouble();
      } int i=0; int i=0; i 0 i<N i N i++ i++ i {
        X[i]=sc.nextDouble();
        Y[i]=sc.nextDouble();
      } {
        X[i]=sc.nextDouble();
        Y[i]=sc.nextDouble();
      } X[i]=sc.nextDouble() X[i] X i sc.nextDouble() sc.nextDouble sc Y[i]=sc.nextDouble() Y[i] Y i sc.nextDouble() sc.nextDouble sc for(int i=0; i<N; i++) {
        double dis = Math.sqrt(X[i]*X[i]+Y[i]*Y[i]);
        if(dis <= D) {
          cnt ++;
        } else {
          //cnt += 0;
          continue;
        }
      } int i=0; int i=0; i 0 i<N i N i++ i++ i {
        double dis = Math.sqrt(X[i]*X[i]+Y[i]*Y[i]);
        if(dis <= D) {
          cnt ++;
        } else {
          //cnt += 0;
          continue;
        }
      } {
        double dis = Math.sqrt(X[i]*X[i]+Y[i]*Y[i]);
        if(dis <= D) {
          cnt ++;
        } else {
          //cnt += 0;
          continue;
        }
      } double dis = Math.sqrt(X[i]*X[i]+Y[i]*Y[i]); dis Math.sqrt(X[i]*X[i]+Y[i]*Y[i]) Math.sqrt Math 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(dis <= D) {
          cnt ++;
        } else {
          //cnt += 0;
          continue;
        } dis <= D dis D {
          cnt ++;
        } cnt ++ cnt {
          //cnt += 0;
          continue;
        } continue; System.out.println(cnt) System.out.println System.out System System.out cnt String[] args args public class Main {
   public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
      
      int N = sc.nextInt();
	  double[] X = new double[N];
      double[] Y = new double[N];
      double D = sc.nextDouble();
      int cnt = 0;
     
      for(int i=0; i<N; i++) {
        X[i]=sc.nextDouble();
        Y[i]=sc.nextDouble();
      }
      
      for(int i=0; i<N; i++) {
        double dis = Math.sqrt(X[i]*X[i]+Y[i]*Y[i]);
        if(dis <= D) {
          cnt ++;
        } else {
          //cnt += 0;
          continue;
        }
      }
      System.out.println(cnt);
    }
} public class Main {
   public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
      
      int N = sc.nextInt();
	  double[] X = new double[N];
      double[] Y = new double[N];
      double D = sc.nextDouble();
      int cnt = 0;
     
      for(int i=0; i<N; i++) {
        X[i]=sc.nextDouble();
        Y[i]=sc.nextDouble();
      }
      
      for(int i=0; i<N; i++) {
        double dis = Math.sqrt(X[i]*X[i]+Y[i]*Y[i]);
        if(dis <= D) {
          cnt ++;
        } else {
          //cnt += 0;
          continue;
        }
      }
      System.out.println(cnt);
    }
} Main
import java.util.Scanner;
 
public class Main {
   public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
      
      int N = sc.nextInt();
	  double[] X = new double[N];
      double[] Y = new double[N];
      double D = sc.nextDouble();
      int cnt = 0;
     
      for(int i=0; i<N; i++) {
        X[i]=sc.nextDouble();
        Y[i]=sc.nextDouble();
      }
      
      for(int i=0; i<N; i++) {
        double dis = Math.sqrt(X[i]*X[i]+Y[i]*Y[i]);
        if(dis <= D) {
          cnt ++;
        } else {
          //cnt += 0;
          continue;
        }
      }
      System.out.println(cnt);
    }
}