class B {
    final int x = 42;
    }

class A extends B {
    int x = 2;
    int inkr (int d) { return x += d; }
    }


class Test {

    public static void main(String args[]) {
        A AA = new A();
        B BB = new B();

        System.out.println("A.x = " + AA.x + " B.x = " + BB.x);
        System.out.println("inkr(3) = " + AA.inkr(3));
        System.out.println("A.x = " + AA.x + " B.x = " + BB.x);
        System.out.println("inkr(13) = " + AA.inkr(13));
        System.out.println("A.x = " + AA.x + " B.x = " + BB.x);

    }
}