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
dac1	25	0	0	0	4	0	0	0	0	0	0	0	0
u2	3	0	0	0	34	0	0	0	0	0	0	0	0
u1	1	0	0	0	1	0	0	0	0	0	0	0	0