#include<iostream.h>
#include<stdlib.h>
#include<conio.h>
#include<graphics.h>
#include<dos.h>
#include<math.h>
void main()
{    int gmode=VGA,gdriver=VGAMED;
	initgraph(&gmode,&gdriver,"c:\\tc\\bgi");
     do
	{
     for(int i=1;i<=15;i++)
	{ setcolor(i);
	  arc(290,180,0,45,random(200));
	  arc(290,180,90,135,random(200));
	  arc(290,180,180,225,random(200));
	  arc(290,180,270,315,random(200));
	  delay(10);
	  //arc(290,180,0,360,random(200));
     } //clrscr();
     }while(!kbhit());
	closegraph();
}