void delay1(int);
void setup() {
  // put your setup code here, to run once:
  volatile int blink[] = {0x0000003f,0x00000006,0x0000005b,0x0000004f,0x00000066,0x0000006d,0x0000007d,0x00000007,0x0000007f,0x00000067};
  volatile int *config,*set,count,i,rem;
  config = (volatile int*)0x50000000;
  *config = 0x00001555;
  set = (volatile int*)0x50000018;
  count = 0;
  rem=0;
  while(1){
    if(count == 2){
        *set = blink[count];
        delay1(3);
        *set = 0x00ff0000;
        
    }
    if(count > 2){
      for(i=2;i<count;i++){
        rem = count % i;
        if(rem == 0){
          break;
        }
        else{
          rem = 1;
          continue;
        }
      }     
    }
    if(rem != 0){
        *set = blink[count];
        delay1(3);
        *set = 0x00ff0000;       
    }
    if(count > 9){
      count = 0;
      rem=0;
    }
    count++;
  }
}
void loop() {
  // put your main code here, to run repeatedly:
}
void delay1(int num){
  volatile int i;
  while(num){
    for(i=0;i<100000;i++);
    num--;
  }
}