#define _USE_MATH_DEFINES
#include <algorithm>
#include <cstdio>
#include <functional>
#include <iostream>
#include <cfloat>
#include <climits>
#include <cstring>
#include <cmath>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <time.h>
#include <vector>
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> i_i;
typedef pair<ll, int> ll_i;
typedef pair<double, int> d_i;
typedef pair<ll, ll> ll_ll;
typedef pair<double, double> d_d;
struct edge { int u, v; ll w; };

ll MOD = 1000000007;
ll _MOD = 1000000009;
double EPS = 1e-10;

int f[5] = {3, 5, 17, 257, 65537};

int main() {
	set<int> s;
	for (int S = 0; S < 32; S++) {
		ll x = 1;
		for (int i = 0; i < 5; i++)
			if ((S >> i) & 1)
				x *= f[i];
		for (; x <= 1000000000; x *= 2)
			s.insert(x);
	}
	int A; cin >> A;
	int cnt = 0;
	for (auto it = s.begin(); it != s.end(); it++)
		if (3 <= *it && *it <= A)
			cnt++;
	cout << cnt << endl;
}