import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;


class Fajlok implements Comparable<Fajlok>
    {
        public String nev;
        public List<String> sorok = new ArrayList<>();

        public Fajlok(String Nev)
        {
            this.nev = Nev;
            sorok = new ArrayList<>();
        }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder(nev + ":\n");
            for (int i = 0; i < sorok.size(); i++)
            {
                sb.append(sorok.get(i));
                if (i < sorok.size() - 1)
                    sb.append("\n");
            }

            return sb.toString();
    }



    @Override
    public int compareTo(Fajlok t) {
       return this.nev.compareTo(t.nev);
    }

}
public class Teszt {

    public static void main(String[] args)
    {
        List<Fajlok> lista = new ArrayList<Fajlok>();
        for (String item : args)
            {
                try
                {
                    Scanner sc = new Scanner(new File(item));
                    String sor;
                    lista.add(new Fajlok(item));
                    int max = 0;
                    List<String> tmp = new ArrayList<>();
                    while (sc.hasNextLine())
                    {
                        tmp.add(sc.nextLine());
                    }

                    for (int i = 0; i < tmp.size(); i++)
                    {
                        if (tmp.get(i).length() > max)
                            max = tmp.get(i).length();
                    }

                    for (int i = 0; i < tmp.size(); i++)
                    {
                        if (tmp.get(i).length() == max)
                            lista.get(lista.size() - 1).sorok.add(tmp.get(i));
                    }
                }
                catch (FileNotFoundException ex)
                {

                }
            }

            Collections.sort(lista);

            for (Fajlok item : lista)
            {
                System.out.println(item);
            }
        }
    }