a o a d h-d D g D d s s P d g H-g h H h g D D o a d h-d D g D d s s h - g - H - h- P P s D h D P a d h g-D s D g h D P s D h g- D P s D h D P a d h g-D s D g h D P s D h g- D h-D - g- d--s-- g h-D-g-d - g D s