#include <iostream>
using namespace std;
 
int main() {
	int n;
	cin >> n;
	double a[n];
	for(int i = 0; i < n ; ++i){
		cin >> a[i];
	}
	if(n >= 3){
		for(int i = 2; i < n; i+=3){
			double tmp = a[i - 1];
			a[i - 1] = (a[i] + a[i - 2])/2;
			a[i] = (tmp + a[i - 2])/2;
		}
		for(int i = 0; i < n ; ++i){
		cout << a[i] <<((i == n - 1)? "\n" : " ");
		}
	}
	return 0;
}