#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int n;
  cin >> n;
  int arr[n];
  int count = 0;
  int count1 = 0;
  for (int i = 0; i < n; i++) {
    cin >> arr[i];
    if (arr[i] & 1) {
      count++;
    }
  }
  int f[n];
  int sum = 0;
  for (int i = 0; i < n; i++) {
    f[i] = floor(double(arr[i]) / 2);
    sum += f[i];
  }
  for (int i = 0; i < n; i++) {
    if (sum == 0) break;
    if (arr[i] & 1) {
      sum++;
      f[i]++;
    }
  }
  for (int i = 0; i < n; i++) {
    cout << f[i] << endl;
  }
  return 0;
}
