using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        int numberOfSongs = int.Parse(Console.ReadLine());

        List<Song> songs = new List<Song>();

        for (int i = 0; i < numberOfSongs; i++)

        {

            string[] songArray = Console.ReadLine()

                .Split('_');

            string typeList = songArray[0];

            string name = songArray[1];

            string time = songArray[2];

            Song song = new Song(typeList, name, time);

            songs.Add(song);

        }

        string chosenSongs = Console.ReadLine();

        for (int i = 0; i < songs.Count; i++)

        {

            Song currentSong = songs[i];

            if (chosenSongs == "all")

            {

                Console.WriteLine(currentSong.Name);

            }

            else if (chosenSongs == currentSong.TypeList)

            {

                Console.WriteLine(currentSong.Name);

            }

        }

    }

}

​

public class Song

{

    public Song(string typeList, string name, string time)

    {

        TypeList = typeList;

        Name = name;

        Time = time;

    }

    public string TypeList { get; set; }

    public string Name { get; set; }

    public string Time { get; set; }

}