#include <bits/stdc++.h>

using namespace std;

#define vi vector<int>
#define ll long long
#define pb push_back
#define mp make_pair
#define ii pair<int,int>


int main(){
	double n,a;
	vector<double> b;

	cin >> n;
	for (int i = 0; i < n; i++)
	{
	    cin >> a;
	    if(a < 0){
	        a = a*(-1);
		if ((i % 2)==0)
		{
		    a = floor(a/2);
			b.pb(a*(-1));
		}else{
		    a = ceil(a/2);
			b.pb(a*(-1));
		}

	    }else{
	        if ((i % 2)==0)
		    {
			    b.pb(floor(a/2));
		    }else{
			    b.pb(ceil(a/2));
		    }
	    }
	}

	for (int i = 0; i < b.size(); ++i)
	{
		cout << b[i] << endl;
	}
  return 0;
}


/*
compilar
g++ arquivo.cpp -std=c++11 -o executavel
*/