There is an extra dot at the start of the third row. Attempting to fix it
now... -Flu
--
light_source{0 1}#default{pigment{rgb<1,0,1>}}#declare F=.3;#macro G(H,I)
box{<F,H-.05,.6>,<F+.01,I-.05,.7>}#end#macro
A(B,C,D,E)G(C,E)box{<B,F-.05,.6>,
<D,(F-.04),.7>}#declare F=F-.1;#end A(-.2,0,.01,0)A(-.1,-.1,.21,.21)
G(-.2,-.1)A(-.1,0,0,.2)A(-.2,-.1,-.1,.3)A(0,-.2,.2,.1)A(-.1,0,.1,.3)//Flu
