// Trace2 Example.

// Draw the reference diagram, trace the instance
// variable changes and predict the output.

public class Main2
{
    public static void main(String[ ] args)
    {
        C c = new C( );
        System.out.println(c.f( ));
        System.out.println(c.g( ));
        System.out.println(c);

        D d = new D(4, 5);
        System.out.println(d.f( ));
        System.out.println(d.g( ));
        System.out.println(d);
    }
}

// Output:
15
28
35
33
24
2913