beginfig(1);
u =         0.1000000000 cm;
draw 
     (        0.0000000000u,        0.0000000000u)--
     (      100.0000000000u,        0.0000000000u)--
     (      100.0000000000u,      100.0000000000u)--
     (        0.0000000000u,      100.0000000000u)--cycle;
draw fullcircle
     xscaled         36.0000000000u
     yscaled         36.0000000000u
     shifted (       18.0000000000u,       50.1122523608u);
draw fullcircle
     xscaled         36.0000000000u
     yscaled         36.0000000000u
     shifted (       55.2561278077u,       48.0802029729u);
draw fullcircle
     xscaled         36.0000000000u
     yscaled         36.0000000000u
     shifted (       34.3152133835u,       18.0000000000u);
draw fullcircle
     xscaled         36.0000000000u
     yscaled         36.0000000000u
     shifted (       34.7204887454u,       82.0000000000u);
draw fullcircle
     xscaled         36.0000000000u
     yscaled         36.0000000000u
     shifted (       82.0000000000u,       82.0000000000u);
draw fullcircle
     xscaled         36.0000000000u
     yscaled         36.0000000000u
     shifted (       82.0000000000u,       18.0000000000u);
endfig;
end;