#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint1000000007;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000001


int main(){
	
	long long A;
	cin>>A;
	
	long long ans = 0LL;
	
	vector<long long> t = {3,5,17,257,65537};
	
	rep(i,1<<t.size()){
		long long c = 1LL;
		rep(j,t.size()){
			if((i>>j)&1)c *= t[j];
		}
		while(c<=A){
			ans++;
			c *= 2;
		}
	}
	
	ans -= 2;
	
	cout<<ans<<endl;
	
	return 0;
}