#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <utility>
#include <string>

using namespace std;

const int SIZE = 5;

int main() {
	int a;
	cin >> a;

	int nums[SIZE] = {3, 5, 17, 257, 65537};
	int ans = 0;
	long long product;

	for (int i = (1 << SIZE) - 1; i >= 1; i--) {
		int tmp = i;
		product = 1;

		for (int j = 0; j < SIZE; j++) {
			if (tmp & (1 << j)) {
				product *= nums[j];
			}
		}

		while (product <= a) {
			ans++;
			product <<= 1;
		}
	}

	product = 4;
	while (product <= a) {
		ans++;
		product <<= 1;
	}

	cout << ans << endl;
	return 0;
}