sSSs $$$$$SSllii _ s%S$$$$S%s _ SS __ _ s%S$$$$$S%s _ d$$$$$$$$$$$$$$$$$S%s _ __ _ s%S$$$b _ s%S$$$$$$$$$$$$$$$$$$$$$$b ^ Y$$$P ^ YP ^ ^ Y$$$$ d$$$$P _ qmmp _ ^ Y$$$P _ gSSb _ mg __ + Y$$ $$$$$ d$$$P Y$$$b $S%g Y$$$$$b d$$$P Y$$$b Sl l$ $$$ d$$$$$ l$$$$$b $$$i s i$$$$$$ $$$$ s $$$$b l l$ $$ $$$$$%%% i$$$$$$$ $$l $$$ $$$$$$l $$$l $$$ l$$$$$ b d$$ S l$$$$$$$ _ S$P ^ d$$$ $$$$$$P $$$$ %%%$$$$l $$bs _ sd$$$$ l Y$$$$$$Sg __ _ Y$$$$$b d$$$$$P g$$$$$b __ d$$$$P ^ Y$$P Y$$$P ^ ^ ^ ^ ^ d$$S%s __ _ _ __ evolution d$$$$$$P ^ __ _ s%S$$$$$$$$$S%s _ $$$$$$P ^ Y$$$$$$$$$$$$$$$$$$b $$$$$l Y$$$P Y$$$$$$$$$P $$$$$l Y$$$P $$$$$$b + 1 Y$$$$$$bs __ _ frgnfroOz(awe) 9 ^ Y$$$$$SSllii __ _ 7 15