acid ------------------------------------------------------------------ ____ ____ ____ A$$$$$$$Ss S$$$$$$S $$$$$$ S$$$$$$ s 88$$$$$$$$$$$$$$$$ d$$$$$$$$$$$$$$$$v d$$$$$$$$$$$$$$$88 8$$$$7 ^ ^ 4$$$$$$ d$$$$$7 ^ ^ 4$$$$$$$ $$$$$$ d$$$$$$7 ^ ^ 4$$$$8 8$$$$$ $$$$$$ $$$$$ $$$$$$ $$$$$$ $$$$$$ $$$$$ $$$$$ $$$$$8$$$$$ $$$$$ $$$$$$ $$$$$ $$$$$ $$$$$ $$$$$$$$$$$ $$$$$ $$$$$$ $$$$$ $$$$$ $$$$$ $$$$$ $$$$$ 8$$$88$$$$$$888888$ $$$$$ 88888$ $$$$$ 8888b 888888888888 $88888 88 $$$$$ 88 88 $$$$$ 88 $$$$$ 8$$ $$$$$$$$$$$$8$8 88$$$$$$$$$$$8$$$88 8$$$$$$$$$$$$$8 888$$$$$$$$$$$$$$8