p-S p f p G p f p G p f S a S p-S p f p G p f S a S p I u I p-S p f p G p f p G p f S a S p a p I u S d G f S a S p-S a p-S p f p G p f p G p f S a S p-S p f p G p f S a S p I u I p-S p f p G p f p G p f S a S p a p I u S d G f S a S p-S a p-S f j-j G f G f d S d S a p-S f j-j H G k k j H k f H j H j f G j f S d a S p a p I O p a p I u S d G f S a S p-S a p-S f j-j G f G f d S d S a p-S f j-j H G k k j H k f H j H j f G j f S d a S p a p I O p a p I u S d G f S a S p-S a