//49.Press 1st switch &Press 4th switch &Press 7th switch &Press 9h switch Glow 8th LED for 10 secondsOne by One
void setup() {
  volatile char *ddrf,*ddrk,*ddra,*ddrc;
  ddrf=0x30;
  ddrk=0x107;
  ddra=0x21;
  ddrc=0x27;
  *ddrf=0xff;
  *ddrk=0xff; 
  *ddra=0x00;
  *ddrc=0x00;
}
void loop() {
  volatile uint32_t *ina,*inc,*outf,*outk;
  outf=0x31;
  outk=0x108;
  ina=0x20;
  inc=0x26;
  volatile uint32_t i,x,j,v,y;
  x=*ina;
  y=*inc;
  for(i=2;i<=128;i=i*8){
    if((x&i)==i||(y&i)==2){
      *outk=1;
      for(j=0;j<=4000000;j++);
      *outk=0;
    }
  }
}