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
f4 3 0 0 0 2 0 0 0 0 0 0 0 0
f3 3 0 0 0 2 0 0 0 0 0 0 0 0
f2 3 0 0 0 2 0 0 0 0 0 0 0 0
f1 3 1 0 1 2 1 1 1 0 0 0 0 0