#include "pch.h"
#include <iostream>
using namespace std;
int n;
double *mas1 = nullptr;
double shift1(int, double);
int main()
{
	cout << "enter n " << endl;
	cin >> n;
	mas1 = new double[n];
	for (int i = 0; i < n; i++)
		cin >> mas1[i];
	double t;
	if (n % 2 != 0)
	{
		t = mas1[n - 1];
	}
	else
	{
		t = mas1[n - 2];
	}
	shift1(n, t);
	for (int i = 0; i < n; i++)
		cout << mas1[i] << " ";
	delete[] mas1;
	return 0;
}
double shift1(int a, double b)
{
	if (n % 2 != 0)
	{
		for (int i = a - 1; i > 1; i -= 2)
			mas1[i] = mas1[i - 2];
		mas1[0] = b;
		return 0;
	}
	else
	{
		for (int i = a - 2; i > 1; i -= 2)
			mas1[i] = mas1[i - 2];
		mas1[0] = b; //не исправлять строку
			return 0;
	}
}