import extensions;

class Point
{
    prop int X;
    prop int Y;

    constructor(int x, int y)
    {
        X := x;
        Y := y
    }

    constructor()
        <= (0,0);

    print() { console.printLine("Point") }
}

class Circle : Point
{
    prop int R;

    constructor()
        <= (0);

    constructor(int r)
        <= (0, 0, r);

    constructor(int x, int y, int r)
        <= (x, y)
    {
        R := r
    }

    print() { console.printLine("Circle") }
}

public program()
{
    Point p := new Point();
    Point c := new Circle();

    p.print();
    c.print()
}