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
circ3	4	0	0	0	3	0	0	0	0	0	0	0	0
circ2	4	0	0	0	3	0	0	0	0	0	0	0	0
circl	6	0	0	0	2	0	0	0	0	0	0	0	0