class dogs
{
    private XeTK Xe = new XeTK();
    public void main()
    {
        if(XeTK.isOld())
            XeTK.killFreshers(True);
    }
}

class XeTK
{
    private boolean old = false, killing = false;
    public void killFreshers(boolean statez)
    {
        killing = statez;
    }

    public boolean isOld()
    {
        return old;
    }
}