// CodeEval.com
// Medium - Stack Implementation
// Score: 56.362

using System;
using System.IO;
using System.Linq;

class Program
{
    static int Main(string[] args)
    {
        using (StreamReader reader = File.OpenText(args[0]))
        {
            while (!reader.EndOfStream)
            {
                var line = reader.ReadLine().Split(null).Select(l => int.Parse(l)).Reverse();

                int i = 1;

                foreach (var l in line)
                {
                    if (i % 2 == 1)
                        Console.Write("{0} ", l);

                    i++;
                }

                Console.WriteLine();
            }
        }
        return 0;
    }
}