%flow.fg2: \flowchart{\flowstart\flowinput{$x$} \flowdecide{Y}{N}{}{$x<0$} \flowendmiddlepart \flowleftpart\flowcompute{$|x|=-x$} \flowendleftpart \flowrightpart\flowcompute{$|x|=x$} \flowendrightpart\flowcombine \flowoutput{$|x|$}\flowend}