import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        double D = sc.nextDouble();
        double X[] = new double[N];
        double Y[] = new double[N];
        for (int i = 0; i < N; i++) {
            X[i] = sc.nextDouble();
            Y[i] = sc.nextDouble();
        }

        int ans = 0;
        for (int i = 0; i < N; i++) {
            if (Math.sqrt(X[i]*X[i] + Y[i]*Y[i]) <= D) {
                ans++;
            }
        }

        System.out.println(ans);
        
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        double D = sc.nextDouble();
        double X[] = new double[N];
        double Y[] = new double[N];
        for (int i = 0; i < N; i++) {
            X[i] = sc.nextDouble();
            Y[i] = sc.nextDouble();
        }

        int ans = 0;
        for (int i = 0; i < N; i++) {
            if (Math.sqrt(X[i]*X[i] + Y[i]*Y[i]) <= D) {
                ans++;
            }
        }

        System.out.println(ans);
        
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        double D = sc.nextDouble();
        double X[] = new double[N];
        double Y[] = new double[N];
        for (int i = 0; i < N; i++) {
            X[i] = sc.nextDouble();
            Y[i] = sc.nextDouble();
        }

        int ans = 0;
        for (int i = 0; i < N; i++) {
            if (Math.sqrt(X[i]*X[i] + Y[i]*Y[i]) <= D) {
                ans++;
            }
        }

        System.out.println(ans);
        
    } main {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        double D = sc.nextDouble();
        double X[] = new double[N];
        double Y[] = new double[N];
        for (int i = 0; i < N; i++) {
            X[i] = sc.nextDouble();
            Y[i] = sc.nextDouble();
        }

        int ans = 0;
        for (int i = 0; i < N; i++) {
            if (Math.sqrt(X[i]*X[i] + Y[i]*Y[i]) <= D) {
                ans++;
            }
        }

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

        int N = sc.nextInt();
        double D = sc.nextDouble();
        double X[] = new double[N];
        double Y[] = new double[N];
        for (int i = 0; i < N; i++) {
            X[i] = sc.nextDouble();
            Y[i] = sc.nextDouble();
        }

        int ans = 0;
        for (int i = 0; i < N; i++) {
            if (Math.sqrt(X[i]*X[i] + Y[i]*Y[i]) <= D) {
                ans++;
            }
        }

        System.out.println(ans);
        
    }
} public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        double D = sc.nextDouble();
        double X[] = new double[N];
        double Y[] = new double[N];
        for (int i = 0; i < N; i++) {
            X[i] = sc.nextDouble();
            Y[i] = sc.nextDouble();
        }

        int ans = 0;
        for (int i = 0; i < N; i++) {
            if (Math.sqrt(X[i]*X[i] + Y[i]*Y[i]) <= D) {
                ans++;
            }
        }

        System.out.println(ans);
        
    }
} Main
import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        double D = sc.nextDouble();
        double X[] = new double[N];
        double Y[] = new double[N];
        for (int i = 0; i < N; i++) {
            X[i] = sc.nextDouble();
            Y[i] = sc.nextDouble();
        }

        int ans = 0;
        for (int i = 0; i < N; i++) {
            if (Math.sqrt(X[i]*X[i] + Y[i]*Y[i]) <= D) {
                ans++;
            }
        }

        System.out.println(ans);
        
    }
}
