    import java.util.Scanner;
     
    public class Main {
    	public static void main (String[] args) {
    		Scanner sc = new Scanner(System.in);
    		int N = sc.nextInt();
    		
    		int count = 0;
    		int ans = 0;
    		
    		for (int i = 105; i <= N; i++) {
    			
    			for (int j = 1; j <= i; j++) {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    }
    			
    			if (count == 8) {
    				ans++;
    			}
    			
    			count = 0;
    		}
    		
    		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 count = 0;
    		int ans = 0;
    		
    		for (int i = 105; i <= N; i++) {
    			
    			for (int j = 1; j <= i; j++) {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    }
    			
    			if (count == 8) {
    				ans++;
    			}
    			
    			count = 0;
    		}
    		
    		System.out.println(ans);
    		
    	}
    } Main public static void main (String[] args) {
    		Scanner sc = new Scanner(System.in);
    		int N = sc.nextInt();
    		
    		int count = 0;
    		int ans = 0;
    		
    		for (int i = 105; i <= N; i++) {
    			
    			for (int j = 1; j <= i; j++) {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    }
    			
    			if (count == 8) {
    				ans++;
    			}
    			
    			count = 0;
    		}
    		
    		System.out.println(ans);
    		
    	} main {
    		Scanner sc = new Scanner(System.in);
    		int N = sc.nextInt();
    		
    		int count = 0;
    		int ans = 0;
    		
    		for (int i = 105; i <= N; i++) {
    			
    			for (int j = 1; j <= i; j++) {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    }
    			
    			if (count == 8) {
    				ans++;
    			}
    			
    			count = 0;
    		}
    		
    		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 count = 0; count 0 int ans = 0; ans 0 for (int i = 105; i <= N; i++) {
    			
    			for (int j = 1; j <= i; j++) {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    }
    			
    			if (count == 8) {
    				ans++;
    			}
    			
    			count = 0;
    		} int i = 105; int i = 105; i 105 i <= N i N i++ i++ i {
    			
    			for (int j = 1; j <= i; j++) {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    }
    			
    			if (count == 8) {
    				ans++;
    			}
    			
    			count = 0;
    		} {
    			
    			for (int j = 1; j <= i; j++) {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    }
    			
    			if (count == 8) {
    				ans++;
    			}
    			
    			count = 0;
    		} for (int j = 1; j <= i; j++) {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    } int j = 1; int j = 1; j 1 j <= i j i j++ j++ j {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    } {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    } if (i % 2 == 0) {
    				break;
    			} i % 2 == 0 i % 2 i 2 0 {
    				break;
    			} break; if (i % j == 0) {
    				count++;
    			} i % j == 0 i % j i j 0 {
    				count++;
    			} count++ count if (count == 8) {
    				ans++;
    			} count == 8 count 8 {
    				ans++;
    			} ans++ ans count = 0 count 0 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 count = 0;
    		int ans = 0;
    		
    		for (int i = 105; i <= N; i++) {
    			
    			for (int j = 1; j <= i; j++) {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    }
    			
    			if (count == 8) {
    				ans++;
    			}
    			
    			count = 0;
    		}
    		
    		System.out.println(ans);
    		
    	}
    } public class Main {
    	public static void main (String[] args) {
    		Scanner sc = new Scanner(System.in);
    		int N = sc.nextInt();
    		
    		int count = 0;
    		int ans = 0;
    		
    		for (int i = 105; i <= N; i++) {
    			
    			for (int j = 1; j <= i; j++) {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    }
    			
    			if (count == 8) {
    				ans++;
    			}
    			
    			count = 0;
    		}
    		
    		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 count = 0;
    		int ans = 0;
    		
    		for (int i = 105; i <= N; i++) {
    			
    			for (int j = 1; j <= i; j++) {
    			
    			if (i % 2 == 0) {
    				break;
    			}
    			
    			if (i % j == 0) {
    				count++;
    			}
    			
    		    }
    			
    			if (count == 8) {
    				ans++;
    			}
    			
    			count = 0;
    		}
    		
    		System.out.println(ans);
    		
    	}
    }