input TEX;
prologues := 1;
%if scantokens(mpversion) < 1.200:
%   filenametemplate
%else:
%   outputtemplate :=
%fi
% "%j.eps";

beginfig(1)
pair zaaab ;
 zaaab = ( 0 , 0 ) ;
pair zaaac ;
 zaaac = ( 1cm , 0 ) ;
pair zaaad ;
 zaaad = ( 0 , 1cm ) ;
path paaae ;
 paaae:=zaaad -- zaaac -- zaaab -- cycle;
drawdblarrow paaae     ;
 path paaaf ;
 paaaf:=zaaab -- zaaad;
pen qaaag ;
 qaaag = pencircle scaled 2bp ;
drawdblarrow paaaf   withpen qaaag   ;
 currentpicture := currentpicture shifted 
                      -llcorner currentpicture shifted (1cm,2cm);
    endfig;
     end;