#include <bits/stdc++.h>
#define FOR(i,a,b) for(int i = (a); i < (b); ++i)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) for(int i = (n) - 1; (i) >= 0; --i)
#define SZ(n) (int)(n).size()
#define ALL(n) (n).begin(), (n).end()
#define MOD LL(1e9 + 7)
#define INF 1000000
using namespace std;
typedef long long LL;
typedef vector<int> VI;
typedef pair<int, int> PI;

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

int main() {
	LL a;
	cin >> a;
	set<LL> st;
	REP(i, 30) {
		LL t = 1;
		REP(j, 5) {
			if ((i >> j) & 1)
				t *= fn[j];
		}
		while (t <= a) {
			if(t > 2)
				st.insert(t);
			t *= 2;
		}
	}
	cout << st.size() << endl;
	return 0;
}