#include<bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i=a;i<b;i++)
typedef long long ll;

ll N;

int main()
{
	cin.tie(0);
	ios::sync_with_stdio(false);

	while (cin >> N)
	{
		ll A = 0;
		ll n = N;

		while (0 < n)
		{
			A += n;
			n /= 2;
		}

		ll B = N * 2;

		ll ans = B - A;
		cout << ans << endl;
	}
}