For the following functions, draw the minimized $2-$layer $($a$)$ AND$/$OR configuration and the $($b$)$ NAND$/$NAND schematics

$3.F_{\text{A}\text{B}\text{C}}={\displaystyle \underset{m}{\overset{?}{}}}(0,2,5,6,7)$

$4.F_{\text{A}\text{B}\text{C}\text{D}}={}_m(0,1,5,6,7,11,13,14,15)$