public class Para<A, B>{
    private Printable first;

    private Printable second;

    public Printable getFirst() {
        return first;
    }

    public Printable getSecond() {
        return second;
    }

    public Para(Printable first, Printable second) {
        this.first = first;
        this.second = second;
    }

    public void print() {
        System.out.println("I'm a pair");
    }





        /*extends Pair<Printable, Printable> {
    public Para(Printable first, Printable second) {
        super(first, second);
    }

    public void print() {
        System.out.println("I'm a pair");
    }
*/
}