% AND-gate WEST
\newsavebox{\andw}
\savebox{\andw}(10,6){
\begin{picture}(10,6)
\put(8,1){\line(1,0){2}}
\put(8,5){\line(1,0){2}}
\put(8,0){\line(0,1){6}}
\put(8,0){\line(-1,0){3}}
\put(5,6){\line(1,0){3}}
\bezier{30}(5,6)(2,6)(2,3)
\bezier{30}(2,3)(2,0)(5,0)
\put(0,3){\line(1,0){2}}
\end{picture}
}