Hierarchy	Input	Constant Input	Unused Input	Floating Input	Output	Constant Output	Unused Output	Floating Output	Bidir	Constant Bidir	Unused Bidir	Input only Bidir	Output only Bidir
A3	3	0	0	0	2	0	0	0	0	0	0	0	0
A2	3	0	0	0	2	0	0	0	0	0	0	0	0
A1	3	0	0	0	2	0	0	0	0	0	0	0	0
A0	3	0	0	0	2	0	0	0	0	0	0	0	0