import java.util.*;

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

        int N = sc.nextInt();

        int ret = 0;

        for (int i = 1; i <= N; i++) {
            if (i % 2 == 0) continue;

            int cnt = 0;
            for (int j = 1; j <= i; j++) {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            }

            if (cnt == 8) ret++;
        }

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

        int N = sc.nextInt();

        int ret = 0;

        for (int i = 1; i <= N; i++) {
            if (i % 2 == 0) continue;

            int cnt = 0;
            for (int j = 1; j <= i; j++) {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            }

            if (cnt == 8) ret++;
        }

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

        int N = sc.nextInt();

        int ret = 0;

        for (int i = 1; i <= N; i++) {
            if (i % 2 == 0) continue;

            int cnt = 0;
            for (int j = 1; j <= i; j++) {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            }

            if (cnt == 8) ret++;
        }

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

        int N = sc.nextInt();

        int ret = 0;

        for (int i = 1; i <= N; i++) {
            if (i % 2 == 0) continue;

            int cnt = 0;
            for (int j = 1; j <= i; j++) {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            }

            if (cnt == 8) ret++;
        }

        System.out.println(ret);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int N = sc.nextInt(); N sc.nextInt() sc.nextInt sc int ret = 0; ret 0 for (int i = 1; i <= N; i++) {
            if (i % 2 == 0) continue;

            int cnt = 0;
            for (int j = 1; j <= i; j++) {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            }

            if (cnt == 8) ret++;
        } 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 <= i; j++) {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            }

            if (cnt == 8) ret++;
        } {
            if (i % 2 == 0) continue;

            int cnt = 0;
            for (int j = 1; j <= i; j++) {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            }

            if (cnt == 8) ret++;
        } if (i % 2 == 0) continue; i % 2 == 0 i % 2 i 2 0 continue; int cnt = 0; cnt 0 for (int j = 1; j <= i; j++) {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            } int j = 1; int j = 1; j 1 j <= i j i j++ j++ j {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            } {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            } if (i % j == 0) cnt++; i % j == 0 i % j i j 0 cnt++ cnt if (cnt > 8) break; cnt > 8 cnt 8 break; if (cnt == 8) ret++; cnt == 8 cnt 8 ret++ ret System.out.println(ret) System.out.println System.out System System.out ret String[] args args public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();

        int ret = 0;

        for (int i = 1; i <= N; i++) {
            if (i % 2 == 0) continue;

            int cnt = 0;
            for (int j = 1; j <= i; j++) {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            }

            if (cnt == 8) ret++;
        }

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

        int N = sc.nextInt();

        int ret = 0;

        for (int i = 1; i <= N; i++) {
            if (i % 2 == 0) continue;

            int cnt = 0;
            for (int j = 1; j <= i; j++) {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            }

            if (cnt == 8) ret++;
        }

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

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

        int N = sc.nextInt();

        int ret = 0;

        for (int i = 1; i <= N; i++) {
            if (i % 2 == 0) continue;

            int cnt = 0;
            for (int j = 1; j <= i; j++) {
                if (i % j == 0) cnt++;
                if (cnt > 8) break;
            }

            if (cnt == 8) ret++;
        }

        System.out.println(ret);
    }
}