import java.util.*;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();

        int ans = 0;
        for(int i=1; i<=N; i++) {
            if(i%2 == 1) {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) 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();

        int ans = 0;
        for(int i=1; i<=N; i++) {
            if(i%2 == 1) {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) ans++;
            }
        }

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

        int ans = 0;
        for(int i=1; i<=N; i++) {
            if(i%2 == 1) {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) ans++;
            }
        }

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

        int ans = 0;
        for(int i=1; i<=N; i++) {
            if(i%2 == 1) {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) 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 int ans = 0; ans 0 for(int i=1; i<=N; i++) {
            if(i%2 == 1) {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) ans++;
            }
        } int i=1; int i=1; i 1 i<=N i N i++ i++ i {
            if(i%2 == 1) {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) ans++;
            }
        } {
            if(i%2 == 1) {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) ans++;
            }
        } if(i%2 == 1) {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) ans++;
            } i%2 == 1 i%2 i 2 1 {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) ans++;
            } int num=0; num 0 for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                } int j=1; int j=1; j 1 j<=N j N j++ j++ j {
                    if(i%j == 0) num++;
                } {
                    if(i%j == 0) num++;
                } if(i%j == 0) num++; i%j == 0 i%j i j 0 num++ num if(num==8) ans++; num==8 num 8 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();

        int ans = 0;
        for(int i=1; i<=N; i++) {
            if(i%2 == 1) {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) ans++;
            }
        }

        System.out.println(ans);
    }
} public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();

        int ans = 0;
        for(int i=1; i<=N; i++) {
            if(i%2 == 1) {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) 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();

        int ans = 0;
        for(int i=1; i<=N; i++) {
            if(i%2 == 1) {
                int num=0;
                for(int j=1; j<=N; j++) {
                    if(i%j == 0) num++;
                }
                if(num==8) ans++;
            }
        }

        System.out.println(ans);
    }
}
