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
U2	11	9	0	9	13	9	9	9	2	0	0	0	0
U1	14	3	0	3	24	3	3	3	0	0	0	0	0