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

int main() {
	int x;
	cin >> x;
	vector<int> f(2147483648);
	f[0] = 0;
	for (int i = 1;i <= 2147483647;i++) {
		f[i] = f[i / 2] + i % 2;
	}
	ll count = 0, sum = 0;
	for (int i = 0;i <= 2147483647;i++) {
		if (f[i] == x) {
			count++;
			sum += i;
		}
	}
	return 0;
}