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II $ � � ' � � � � � � � p � � � � � � � � � � � � � � � � . � � � � � � � � � 2 � � � % � �� � � �� � �� � � � � � � X � � � � � P � � � � � H � 3 (C) Hewlett-Packard, 1986,'87,'88,'89. Version 1.2. ! "