AppendedLists

using System;
using System.Collections.Generic;
using System.Linq;

namespace _03AppendedLists
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> lists = Console.ReadLine().Split('|').ToList();
            List<string> listResult = new List<string>();

            for (int i = lists.Count - 1; i >= 0; i--)
            {
                string[] currList = lists[i].Split(' ');
                foreach (var item in currList)
                {
                    if (item != " ") listResult.Add(item);
                }
                Console.WriteLine(String.Join(" ", listResult));
            }
        }
    }
}