Question 319020
{{{drawing(300,300,-8,8,-8,8,grid(1),
circle( -1,4,.4),
circle( 5,4,.4),
circle( -1,-2,.4),
circle( 5,-2,.4),
line(-1,4,5,4),
line(5,4,5,-2),
line(5,-2,-1,-2),
line(-1,-2,-1,4),
graph(300,300,-8,8,-8,8,0))}}}