size(7.5cm,0);
path c1=unitcircle,
     c2=shift(1,0)*scale(1.5)*unitcircle,
     c3=scale(2)*unitcircle;
path[] c={c1,c2,c3};

filldraw(c,palegreen,black);

filldraw(shift(5,0)*c,palered+evenodd,black);

shipout(bbox(5mm,white));