#include <iostream>
#include <vector>
#include <string>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <algorithm>	// require sort next_permutation count __gcd reverse etc.
#include <cstdlib>	// require abs exit atof atoi 
#include <cstdio>		// require scanf printf
#include <functional>
#include <numeric>	// require accumulate
#include <cmath>		// require fabs
#include <climits>
#include <limits>
#include <cfloat>
#include <iomanip>	// require setw
#include <sstream>	// require stringstream 
#include <cstring>	// require memset
#include <cctype>		// require tolower, toupper
#include <fstream>	// require freopen
#include <ctime>		// require srand
#define rep(i,n) for(int i=0;i<(n);i++)
#define ALL(A) A.begin(), A.end()

using namespace std;

typedef long long ll;
typedef pair<int, int> P;

int f[] = { 1, 3, 5, 17, 257, 65537 };

int main()
{
	ios_base::sync_with_stdio(0);
	int n; cin >> n;


	vector<ll> g; g.clear(); 
	int m =6;
	for (int i = 1; i < (1 << m ); i++ ){
		ll curr = 1LL;
		rep (j, m ){
			if (i & (1<<j ) ) curr *= (ll)f[j];
		} // end rep
		if (curr <= n )
			g.push_back (curr );
	} // end for

	vector<ll> g2; g2.clear();
	rep (i, g.size() ){
		ll curr = g[i];
		while (curr <= (ll)n ){
			g2.push_back (curr );
			curr *= 2LL;
		} // end while
	} // end rep
	sort (ALL (g2 ) );
	g2.erase (unique (ALL (g2 ) ), g2.end() );

	int res = 0;
	rep (i, g2.size() ){
		if (g2[i] > 2 ) res++;
	} // end rep	

	cout << res << endl;

	return 0;
}