\documentclass{article}
\input tmp.inputs
\pagestyle{empty}
\begin{document}
\definecolor{lightblue}{rgb}{0,0,.5}
\definecolor{Navy}{rgb}{0,0,0.5}
\definecolor{LemonChiffon}{rgb}{1,0.98,0.8}
\definecolor{ForestGreen}{rgb}{0.13,0.55,0.13}
\def\transl#1#2{#1\space 72 2.54 div mul #2\space 72 2.54 div
     mul translate  0 0 moveto }
\newif\ifnotbothz
 \pspicture(-6,-6)(6,6)
 \psaxes{<->}(0,0)(-6,-6)(6,6)
 \multido{\n=-5+1}{11}{%
 \multido{\N=-5+1}{11}{%
 \notbothztrue%
 \ifnum\N=0 %
 \ifnum\n=0 \notbothzfalse\fi%
 \fi%
 \ifnotbothz%
 \psdot(0,0)%
 \pstverb{\transl{\n}{\N}\space
 \n\space neg \N\space
    atan rotate -9 0 moveto 18 0 rlineto stroke }
\fi}}
\endpspicture
\end{document}
