using System;
using System.Linq;

namespace _490
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int[] x = Console.ReadLine().Split().Select(int.Parse).ToArray();
            for (int i = 1; i < 2 * n - 3; i++)
            {
                for (int p = 0; p <= n - 1; p++)
                {
                    for (int q = p + 1; q <= n - 1; q++)
                    {
                        if (p + q == i)
                        {
                            if (x[p] > x[q])
                            {
                                int a = x[p]; x[p] = x[q]; x[q] = a;
                            }
                        }
                    }
                }
            }
            Console.WriteLine(string.Join(" ",x));
        }
    }
}