import java.util.Scanner;

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++) {
            int cnt = 0;
            if(i % 2 != 0) {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 8) ans++;
            }
        }
        System.out.println(ans);
    }
} import java.util.Scanner; Scanner 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++) {
            int cnt = 0;
            if(i % 2 != 0) {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 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++) {
            int cnt = 0;
            if(i % 2 != 0) {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 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++) {
            int cnt = 0;
            if(i % 2 != 0) {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 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++) {
            int cnt = 0;
            if(i % 2 != 0) {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 8) ans++;
            }
        } int i=1; int i=1; i 1 i<=n i n i++ i++ i {
            int cnt = 0;
            if(i % 2 != 0) {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 8) ans++;
            }
        } {
            int cnt = 0;
            if(i % 2 != 0) {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 8) ans++;
            }
        } int cnt = 0; cnt 0 if(i % 2 != 0) {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 8) ans++;
            } i % 2 != 0 i % 2 i 2 0 {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 8) ans++;
            } for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                } int j=1; int j=1; j 1 j*j<=i j*j j j i j++ j++ j {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                } {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                } if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    } i % j == 0 i % j i j 0 {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    } cnt++ cnt if(i / j != j) {
                            cnt++;
                        } i / j != j i / j i j j {
                            cnt++;
                        } cnt++ cnt if(cnt == 8) ans++; cnt == 8 cnt 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++) {
            int cnt = 0;
            if(i % 2 != 0) {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 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++) {
            int cnt = 0;
            if(i % 2 != 0) {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 8) ans++;
            }
        }
        System.out.println(ans);
    }
} Main
import java.util.Scanner;

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++) {
            int cnt = 0;
            if(i % 2 != 0) {
                for(int j=1; j*j<=i; j++) {
                    if(i % j == 0) {
                        cnt++;
                        if(i / j != j) {
                            cnt++;
                        }
                    }
                }
                if(cnt == 8) ans++;
            }
        }
        System.out.println(ans);
    }
}
