/**
 *   @FileName	a.cpp
 *   @Author	kanpurin
 *   @Created	2020.06.07 18:34:13
**/

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

int bitpopcount(ll n) {
    int res = 0;
    while (n) {
        if (n & 1) res++;
        n >>= 1;
    }
    return res;
}
int main() {
    ll n;cin >> n;
    cout << n + 1 - (ll)pow(2,bitpopcount(n)) << endl;
    return 0;
}