//package com.atcoder.contest174.b;

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 fs = new FastScanner();
        int n = fs.nextInt();
        long d = fs.nextInt();
        long D = d*d;
        long ans = 0;
        for(int i=0; i<n; ++i) {
            long x = fs.nextInt();
            long y = fs.nextInt();
            long dist = x*x + y*y;
//            System.out.println(dist + " " + D);
            if(dist <= D) ans++;
        }
        System.out.println(ans);
    }

    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 fs = new FastScanner();
        int n = fs.nextInt();
        long d = fs.nextInt();
        long D = d*d;
        long ans = 0;
        for(int i=0; i<n; ++i) {
            long x = fs.nextInt();
            long y = fs.nextInt();
            long dist = x*x + y*y;
//            System.out.println(dist + " " + D);
            if(dist <= D) ans++;
        }
        System.out.println(ans);
    }

    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 fs = new FastScanner();
        int n = fs.nextInt();
        long d = fs.nextInt();
        long D = d*d;
        long ans = 0;
        for(int i=0; i<n; ++i) {
            long x = fs.nextInt();
            long y = fs.nextInt();
            long dist = x*x + y*y;
//            System.out.println(dist + " " + D);
            if(dist <= D) ans++;
        }
        System.out.println(ans);
    } main {
        FastScanner fs = new FastScanner();
        int n = fs.nextInt();
        long d = fs.nextInt();
        long D = d*d;
        long ans = 0;
        for(int i=0; i<n; ++i) {
            long x = fs.nextInt();
            long y = fs.nextInt();
            long dist = x*x + y*y;
//            System.out.println(dist + " " + D);
            if(dist <= D) ans++;
        }
        System.out.println(ans);
    } FastScanner fs = new FastScanner(); fs new FastScanner() int n = fs.nextInt(); n fs.nextInt() fs.nextInt fs long d = fs.nextInt(); d fs.nextInt() fs.nextInt fs long D = d*d; D d*d d d long ans = 0; ans 0 for(int i=0; i<n; ++i) {
            long x = fs.nextInt();
            long y = fs.nextInt();
            long dist = x*x + y*y;
//            System.out.println(dist + " " + D);
            if(dist <= D) ans++;
        } int i=0; int i=0; i 0 i<n i n ++i ++i i {
            long x = fs.nextInt();
            long y = fs.nextInt();
            long dist = x*x + y*y;
//            System.out.println(dist + " " + D);
            if(dist <= D) ans++;
        } {
            long x = fs.nextInt();
            long y = fs.nextInt();
            long dist = x*x + y*y;
//            System.out.println(dist + " " + D);
            if(dist <= D) ans++;
        } long x = fs.nextInt(); x fs.nextInt() fs.nextInt fs long y = fs.nextInt(); y fs.nextInt() fs.nextInt fs long dist = x*x + y*y; dist x*x + y*y x*x x x y*y y y if(dist <= D) ans++; dist <= D dist D ans++ ans System.out.println(ans) System.out.println System.out System System.out ans 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 fs = new FastScanner();
        int n = fs.nextInt();
        long d = fs.nextInt();
        long D = d*d;
        long ans = 0;
        for(int i=0; i<n; ++i) {
            long x = fs.nextInt();
            long y = fs.nextInt();
            long dist = x*x + y*y;
//            System.out.println(dist + " " + D);
            if(dist <= D) ans++;
        }
        System.out.println(ans);
    }

    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 fs = new FastScanner();
        int n = fs.nextInt();
        long d = fs.nextInt();
        long D = d*d;
        long ans = 0;
        for(int i=0; i<n; ++i) {
            long x = fs.nextInt();
            long y = fs.nextInt();
            long dist = x*x + y*y;
//            System.out.println(dist + " " + D);
            if(dist <= D) ans++;
        }
        System.out.println(ans);
    }

    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
//package com.atcoder.contest174.b;

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 fs = new FastScanner();
        int n = fs.nextInt();
        long d = fs.nextInt();
        long D = d*d;
        long ans = 0;
        for(int i=0; i<n; ++i) {
            long x = fs.nextInt();
            long y = fs.nextInt();
            long dist = x*x + y*y;
//            System.out.println(dist + " " + D);
            if(dist <= D) ans++;
        }
        System.out.println(ans);
    }

    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());
        }
    }
}
