#define _USE_MATH_DEFINES
#include  <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <string>
#include<math.h>
#include<iomanip>
#include<stdio.h>
#include <stdlib.h>
#include<stdio.h>
#include <queue>
#include<map>
#include <sstream>
#include<set>
#include<stack>

//#include<bits/stdc++.h>


using namespace std;



int main() {


	int n;
	cin >> n;

	long long int p[5] = { 3,5,17,257,65537 };
	long long int ans = 0;
	for (long long int i = 0; i < (1 << 5); i++) {
		long long int t = 1;
//		cout<<i<<endl;
		for (int j = 0; j < 5; j++) {//cout<<(1<<j)<<" ";
			if (i & (1 << j))t *= p[j];
			
		}
	//	cout << endl;
		for (long long j = t; j <= n; j <<= 1){
			if(j>=3)ans++;
			//cout << t;;
		}
	}
	cout << ans << endl;

	return 0;




}