import java.util.Locale;

public class Main {
    public static void main(String[] args) {
        System.out.println(new String("ß").toUpperCase(Locale.GERMAN));
        System.out.println(Character.toUpperCase('ß'));
        System.out.println(new String("I").toLowerCase(new Locale("tr")));
        System.out.println(new String("I").toLowerCase(Locale.ENGLISH));
    }
}