size(7.5cm,0); path c1=circle((.5,.5),.6), c2=unitsquare, c3=shift(1.5,0)*c1, c4=shift(1.5,0)*c2; filldraw(c1^^c2,yellow+evenodd,black); filldraw(c3^^c4,yellow,black); shipout(bbox(5mm,white));