%-----------------------------------------------------------------------------------------
\usepackage{lineno}
\linenumbers
\usepackage{background}
\backgroundsetup{contents=Uncorrected proofs, opacity=0.3, scale=7}
%-----------------------------------------------------------------------------------------


\newcommand{\Bin}{\bigskip \noindent}
\newcommand{\Bi}{\bigskip}
\newcommand{\Ni}{\noindent}