Drawing lines

%!PS-Adobe-3.0
0 0 moveto 0 400 lineto stroke
10 0 moveto 0 400 lineto stroke
20 0 moveto 0 400 lineto stroke
30 0 moveto 0 400 lineto stroke
%....
390 0 moveto 0 400 lineto stroke
400 0 moveto 0 400 lineto stroke
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