#include<graphics.h>
#include<conio.h>
int main(void)
{
int gdriver=DETECT,gmode;
int xcenter,ycenter,i;
initgraph(&gdriver,&gmode,"");
xcenter=getmaxx()/2;
ycenter=getmaxy()/2;
for(i=0;i<13;i++)
{
setfillstyle(i,WHITE);
fillellipse(xcenter,ycenter,100,50);
getch();
}
closegraph();
return 0;
}