c = circle() show(c) c1=circle(x=-50, y=1, r=50) c2=circle(x=-30, y=1, r=40) show(c1,c2) c3=circle(x=50, y=1, r=50) show(c3) c4=circle(x=30, y=1, r=40) show(c4) c5=circle(y=50, x=1, r=50) show(c5) c6=circle(y=30, x=1, r=40) show(c6) c7=circle(y=-50, x=1, r=50) show(c7) c8=circle(y=-30, x=1, r=40) show(c8)