#define _USE_MATH_DEFINES
#define _CRT_SECURE_NO_WARNINGS
#include "bits/stdc++.h"
#define rep(i,n) for(int i = 0;i < n;i++)
#define REP(i,n,k) for(int i = n;i < k;i++)
#define P(p) cout<<(p)<<endl;
#define pi 3.1415926535
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
int dx[] = { 0, 1, 0, -1 };
int dy[] = { -1, 0, 1, 0 };

unsigned long long sttoi(std::string str) {
	unsigned long long ret;
	std::stringstream ss; ss << str;
	ss >> ret;
	return ret;
}

ll gcd(ll a, ll b){
	if (b > a)swap(a, b);
	if (b == 0) return a;
	return gcd(b, a%b);
}
ll f[] = { 3, 5, 17, 257, 65537 };
void solve() {
	ll n;
	cin >> n;
	int cnt = 0;
	rep(i, 30){
		rep(j, 1 << 5){
			ll t = pow(2, i);
			rep(k, 5){
				if (j & 1 << k)t *= f[k];
			}
			if(t >= 3 && t <= n)cnt++;
		}
	}
	P(cnt);
}

int main() {
	solve();
	return 0;
}