#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int arr[n];
  for (int i = 0; i < n; i++) cin >> arr[i];
  int c = 0;
  for (int i = 0; i < n; i++) {
    if (arr[i] % 2 != 0) {
      if (c == 0) {
        cout << (arr[i] + 1) / 2 << endl;
      } else {
        cout << (arr[i] - 1) / 2 << endl;
      }
      c ^= 1;
    } else {
      cout << (arr[i]) / 2 << endl;
    }
  }
}
