import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = Integer.parseInt(in.next());
            int ans = 0;
            for (int i = 1; i <= N; i++) {
                if (i % 2 == 0) continue;
                int cnt = 0;
                for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                }
                if (cnt == 8) {
                    ans++;
                }
            }
            out.println(ans);
        }

    }
}
 import java.io.OutputStream; OutputStream java.io import java.io.IOException; IOException java.io import java.io.InputStream; InputStream java.io import java.io.PrintWriter; PrintWriter java.io import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = Integer.parseInt(in.next());
            int ans = 0;
            for (int i = 1; i <= N; i++) {
                if (i % 2 == 0) continue;
                int cnt = 0;
                for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                }
                if (cnt == 8) {
                    ans++;
                }
            }
            out.println(ans);
        }

    }
} Main public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    } main {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    } InputStream inputStream = System.in; inputStream System.in System System.in OutputStream outputStream = System.out; outputStream System.out System System.out Scanner in = new Scanner(inputStream); in new Scanner(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) TaskB solver = new TaskB(); solver new TaskB() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class TaskB {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = Integer.parseInt(in.next());
            int ans = 0;
            for (int i = 1; i <= N; i++) {
                if (i % 2 == 0) continue;
                int cnt = 0;
                for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                }
                if (cnt == 8) {
                    ans++;
                }
            }
            out.println(ans);
        }

    } TaskB public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = Integer.parseInt(in.next());
            int ans = 0;
            for (int i = 1; i <= N; i++) {
                if (i % 2 == 0) continue;
                int cnt = 0;
                for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                }
                if (cnt == 8) {
                    ans++;
                }
            }
            out.println(ans);
        } solve {
            int N = Integer.parseInt(in.next());
            int ans = 0;
            for (int i = 1; i <= N; i++) {
                if (i % 2 == 0) continue;
                int cnt = 0;
                for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                }
                if (cnt == 8) {
                    ans++;
                }
            }
            out.println(ans);
        } int N = Integer.parseInt(in.next()); N Integer.parseInt(in.next()) Integer.parseInt Integer in.next() in.next in int ans = 0; ans 0 for (int i = 1; i <= N; i++) {
                if (i % 2 == 0) continue;
                int cnt = 0;
                for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                }
                if (cnt == 8) {
                    ans++;
                }
            } int i = 1; int i = 1; i 1 i <= N i N i++ i++ i {
                if (i % 2 == 0) continue;
                int cnt = 0;
                for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                }
                if (cnt == 8) {
                    ans++;
                }
            } {
                if (i % 2 == 0) continue;
                int cnt = 0;
                for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                }
                if (cnt == 8) {
                    ans++;
                }
            } if (i % 2 == 0) continue; i % 2 == 0 i % 2 i 2 0 continue; int cnt = 0; cnt 0 for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                } int j = 1; int j = 1; j 1 j <= N j N j++ j++ j {
                    if (i % j == 0) cnt++;
                } {
                    if (i % j == 0) cnt++;
                } if (i % j == 0) cnt++; i % j == 0 i % j i j 0 cnt++ cnt if (cnt == 8) {
                    ans++;
                } cnt == 8 cnt 8 {
                    ans++;
                } ans++ ans out.println(ans) out.println out ans int testNumber testNumber Scanner in in PrintWriter out out public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = Integer.parseInt(in.next());
            int ans = 0;
            for (int i = 1; i <= N; i++) {
                if (i % 2 == 0) continue;
                int cnt = 0;
                for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                }
                if (cnt == 8) {
                    ans++;
                }
            }
            out.println(ans);
        }

    }
} public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = Integer.parseInt(in.next());
            int ans = 0;
            for (int i = 1; i <= N; i++) {
                if (i % 2 == 0) continue;
                int cnt = 0;
                for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                }
                if (cnt == 8) {
                    ans++;
                }
            }
            out.println(ans);
        }

    }
} Main
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = Integer.parseInt(in.next());
            int ans = 0;
            for (int i = 1; i <= N; i++) {
                if (i % 2 == 0) continue;
                int cnt = 0;
                for (int j = 1; j <= N; j++) {
                    if (i % j == 0) cnt++;
                }
                if (cnt == 8) {
                    ans++;
                }
            }
            out.println(ans);
        }

    }
}

