beginfig(1);
u =         0.0833333333 cm;
draw 
     (        0.0000000000u,        0.0000000000u)--
     (      120.0000000000u,        0.0000000000u)--
     (      120.0000000000u,      100.0000000000u)--
     (        0.0000000000u,      100.0000000000u)--cycle;
draw fullcircle
     xscaled         40.0000000000u
     yscaled         40.0000000000u
     shifted (       20.0000000000u,       20.0000000000u);
draw fullcircle
     xscaled         40.0000000000u
     yscaled         40.0000000000u
     shifted (      100.0000000000u,       28.5092268427u);
draw fullcircle
     xscaled         40.0000000000u
     yscaled         40.0000000000u
     shifted (       97.7686172954u,       80.0000000000u);
draw fullcircle
     xscaled         40.0000000000u
     yscaled         40.0000000000u
     shifted (       60.8837782320u,       20.0000000000u);
draw fullcircle
     xscaled         40.0000000000u
     yscaled         40.0000000000u
     shifted (       20.0000000000u,       62.0111964338u);
draw fullcircle
     xscaled         40.0000000000u
     yscaled         40.0000000000u
     shifted (       58.2079461829u,       73.8708380894u);
endfig;
end;