#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  long long n;
  cin >> n;
  vector<long long> v(n);
  for (long long i = 0; i < n; ++i) cin >> v[i];
  long long sum = 0;
  for (long long i = 0; i < n; ++i) {
    cout << sum + v[i] << " ";
    if (v[i] > 0) sum += v[i];
  }
  cout << "\n";
  return 0;
}
