fgfhgfjh

taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught taught