#include <bits/stdc++.h>
using namespace b
int main()
{
    int n, aux = 0;
    scanf("%d", &n);

    double array [n];

    for (int i = 0 ; i < n ; i++)
    {
        scanf("%lf", &array[i]);
        if(aux) printf("%.0lf\n", floor(array[i]/2));
        else printf("%.0lf\n", ceil(array[i]/2));
        if((int)array[i] % 2 != 0) aux = !aux;
    }

    return 0;
}