#include <bits/stdc++.h>
#pragma comment(linker, "/STACK:256000000")
using namespace std;
const double pi = acos(-1.0);
const double eps = 1e-11;
const int p = 1000000007;
int countbit(int n) { return n == 0 ? 0 : countbit(n / 2) + n % 2; }
int lowbit(int n) { return (n ^ (n - 1)) & n; }
long long gcd(long long a, long long b) { return b == 0 ? a : gcd(b, a % b); }
long long lcm(long long a, long long b) { return a * b / gcd(a, b); }
long long toInt64(string s) {
  istringstream sin(s);
  long long t;
  sin >> t;
  return t;
}
template <typename T>
T sqr(T n) {
  return n * n;
}
template <typename T>
void out(T& v) {
  for (int i = 0; i < v.size(); i++) cout << v[i] << ' ';
  cout << endl;
}
class Timer {
 public:
  double start;
  Timer() { start = static_cast<double>(clock()); }
  void out() { cout << "TIME: " << (clock() - start) / CLOCKS_PER_SEC << endl; }
};
void solve() {
  int n;
  cin >> n;
  vector<int> a(n);
  for (int i = 0; i < n; i++) cin >> a[i];
  int m = 1 << 20;
  int r = 0;
  for (int i = 0; i < n - 1; i++) {
    r += a[i];
    cout << r << (i == n - 2 ? '\n' : ' ');
    while (i + m >= n) m >>= 1;
    a[i + m] += a[i];
  }
}
int main() {
  Timer timer;
  cout.sync_with_stdio(false);
  cin.sync_with_stdio(false);
  solve();
  return EXIT_SUCCESS;
}
