� � IC5 � � IC4 � � OC3 � � IC5 � � BW4 � � IC5$ � �
IC3$ � � IC3$ �
� GC$ � � GC � � BW1 �
� BW1 � � OC4 � � BW2 � � BW2 � � BW2
� �
BW1
� � BW1 � � GC � � GC � � IC1 � � IC1 � � OC5$ � � IC2 � � IC2 � � IC1 � �
IC2 � � IC1 � � GC
�! � GC �"