% NAND-gate SOUTH
\newsavebox{\nands}
\savebox{\nands}(6,11){
\begin{picture}(6,11)
\put(6,9){\line(-1,0){6}}
\put(0,9){\line(0,-1){3}}
\put(6,9){\line(0,-1){3}}
\put(1,9){\line(0,1){2}}
\put(5,9){\line(0,1){2}}
\bezier{30}(0,6)(0,3)(3,3)
\bezier{30}(3,3)(6,3)(6,6)
\put(3,0){\line(0,1){1.5}}
\put(3,2.25){\circle{1.5}}
\end{picture}
}