public class Concatena2{
	public static void main(String[] args){
		String nome = "Alessandro";
		String cognome = "Farinelli";
		System.out.println(nome.toLowerCase().concat(cognome.toUpperCase()));
		System.out.println(nome.toUpperCase().concat(cognome.toLowerCase()));
		System.out.println(nome.toUpperCase().concat(cognome.toUpperCase()));
	}
}