package no237;

import java.util.HashSet;
import java.util.Scanner;

public class Main {
	public static long[] felmatPrime = {3,5,17,257,65537};
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		HashSet<Long> hs = new HashSet<>();
		for(int i=0;i<32;i++) {
			long x = 1;
			for(int j=0;j<5;j++) {
				if ((i >> j & 1) == 1) {
					x *= felmatPrime[j];
				}
			}
			while(x <= a) {
				hs.add(x);
				x <<= 1;
			}
		}
		System.out.println(hs.size() - 2);
	}

}