#include <bits/stdc++.h>
using namespace std;
using ll = long long;

ll F[] = {3,5,17,257,65537};

int main(){
	ll a;
	cin >> a;
	ll ans = 0;
	for(int i = 0; i < 30; i++){
		for(int j = 0; j < 32; j++){
			ll b = 1 << i;
			for(int k = 0; k < 5; k++){
				if(j>>k&1) b *= F[k];
			}
			if(3 <= b and b <= a) ans++;
		}
	}
	cout << ans << endl;
	return 0;
}