beginfig(1);
u =         0.0625000000 cm;
draw 
     (        0.0000000000u,        0.0000000000u)--
     (      160.0000000000u,        0.0000000000u)--
     (      160.0000000000u,       80.0000000000u)--
     (        0.0000000000u,       80.0000000000u)--cycle;
draw fullcircle
     xscaled         50.0000000000u
     yscaled         50.0000000000u
     shifted (       25.0043045031u,       44.7306682204u);
draw fullcircle
     xscaled         50.0000000000u
     yscaled         50.0000000000u
     shifted (      134.5828923375u,       45.1730315843u);
draw fullcircle
     xscaled         50.0000000000u
     yscaled         50.0000000000u
     shifted (       74.0220154381u,       25.0000000000u);
endfig;
end;