import java.util.*;
import java.text.*;

class F {
    public static void main(String args[]) {

	Locale locale = new Locale("sv", "se");

	Collator collator = Collator.getInstance(locale);

	SortedSet<String> l = new TreeSet<String>(collator);

	for (String s : args) {
	    l.add(s);
	}

	System.out.println(l);
    }
}