import java.lang.reflect.Array;
import java.util.*;

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

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