uses graph;
var gd,gm,x0,y0,r,i,h:integer;
begin
gd:=0;
initgraph(gd,gm,'');
x0:=getmaxX div 2;
y0:=getmaxY div 2;
r:=y0-10;
h:=r div 10;
for i:=1 to 10 do
begin
Setcolor(i);
Circle(x0,y0,r);
Setfillstyle(1,i);
floodfill(x0,y0,i);
r:=r-h;
end;
readln
end.