import java.util.*;
public class Andmed3{
  public static void main(String[] argumendid){
    List<String> andmed=new ArrayList<String>();
	andmed.add("Madis");
	andmed.add("Juku");
	andmed.add("Mati");
	andmed.add("Madis");
    System.out.println("Madis, "+
	  Collections.frequency(andmed, "Madis")+" tk.");
	System.out.println("T2hestikus esimene: "+
	  Collections.min(andmed));
	Collections.shuffle(andmed);
	System.out.println("Segamini: "+andmed);
	Collections.reverse(andmed);
	System.out.println("Tagurpidi: "+andmed);
	Set<String> nimehulk=new HashSet<String>();
	nimehulk.addAll(andmed); //set ei sisalda korduvaid
	System.out.println(nimehulk);
  }
}