#include
    
     #include
     
      unsigned char led[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};void delay( )                       {   int i,j;   for(i=0;i<56;i++)   for(j=0;j<77;j++);   }void main(void){  int i,j;  DDRB=0xff;  while(1)  {    PORTB=0b11111111;     for(i=0;i<=7;i++)    {         PORTB=led[i];	delay();	}		   }  }