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

namespace _01.FilterExtensions
{
    public class FilterExtensions
    {
        public static void Main()
        {
            var files = Directory.GetFiles("input");
            var input = Console.ReadLine();

            foreach (var file in files)
            {
                var currentFile = file.Split(new[] { '\\', '.' }, StringSplitOptions.RemoveEmptyEntries).ToList();

                if (input == currentFile[currentFile.Count - 1])
                {
                    Console.WriteLine(string.Join(".", currentFile));
                }

            }

        }
    }
}