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