void setup() {
  // put your setup code here, to run once:
  volatile char *dirf, *dirk, *dira, *dirc;
  volatile char *outf, *outk, *outa, *outc;
  volatile long i, j, ten, one, thousand, hundred;
  dirf = 0x30; dirk = 0x107; dira = 0x21; dirc = 0x27;
  outf = 0x31; outk = 0x108; outa = 0x22; outc = 0x28;
  *dirf = 0xFF; *dirf = 0xFF; *dira = 0xFF; *dirc = 0xFF;
  while(1)
  {
  for(i=10; i<=99; i++)
  {

    if(((i%2)!=0) && ((i%3)!=0) && ((i%5)!=0) && ((i%7)!=0))
    {
      ten = i/10;
      one = i%10;
    


    //thousand = i/1000;
    //hundred = (i%1000)/100;
    //ten = (i%100)/10;
    //one = i%10;

    
    
    /*switch(thousand)
    {
      case 0:
      *outf = 0x3F;
      break;
      case 1:
      *outf = 0x06;
      break;
      case 2:
      *outf = 0x5B;
      break;
      case 3:
      *outf = 0x4F;
      break;
      case 4:
      *outf = 0x66;
      break;
      case 5:
      *outf = 0x6D;
      break;
      case 6:
      *outf = 0x7D;
      break;
      case 7:
      *outf = 0x07;
      break;
      case 8:
      *outf = 0x7F;
      break;
      case 9:
      *outf = 0x6F;
      break;
    }

    switch(hundred)
    {
      case 0:
      *outk = 0x3F;
      break;
      case 1:
      *outk = 0x06;
      break;
      case 2:
      *outk = 0x5B;
      break;
      case 3:
      *outk = 0x4F;
      break;
      case 4:
      *outk = 0x66;
      break;
      case 5:
      *outk = 0x6D;
      break;
      case 6:
      *outk = 0x7D;
      break;
      case 7:
      *outk = 0x07;
      break;
      case 8:
      *outk = 0x7F;
      break;
      case 9:
      *outk = 0x6F;
      break;
    }*/

    switch(ten)
    {
      case 0:
      *outa = 0x3F;
      break;
      case 1:
      *outa = 0x06;
      break;
      case 2:
      *outa = 0x5B;
      break;
      case 3:
      *outa = 0x4F;
      break;
      case 4:
      *outa = 0x66;
      break;
      case 5:
      *outa = 0x6D;
      break;
      case 6:
      *outa = 0x7D;
      break;
      case 7:
      *outa = 0x07;
      break;
      case 8:
      *outa = 0x7F;
      break;
      case 9:
      *outa = 0x6F;
      break;
    }

    switch(one)
    {
      case 0:
      *outc = 0x3F;
      break;
      case 1:
      *outc = 0x06;
      break;
      case 2:
      *outc = 0x5B;
      break;
      case 3:
      *outc = 0x4F;
      break;
      case 4:
      *outc = 0x66;
      break;
      case 5:
      *outc = 0x6D;
      break;
      case 6:
      *outc = 0x7D;
      break;
      case 7:
      *outc = 0x07;
      break;
      case 8:
      *outc = 0x7F;
      break;
      case 9:
      *outc = 0x6F;
      break;
    }
    delay(1000);
    }
    
    /*for(j=0; j<=9; j++)
    {
      *outk = 0x3F;
      delay(1000);
      *outk = 0x06;
      delay(1000);
      *outk = 0x5B;
      delay(1000);
      *outk = 0x4F;
      delay(1000);
      *outk = 0x66;
      delay(1000);
      *outk = 0x6D;
      delay(1000);
      *outk = 0x7D;
      delay(1000);
      *outk = 0x07;
      delay(1000);
      *outk = 0x7F;
      delay(1000);
      *outk = 0x6F;
      delay(1000);
    }*/
  }
  

  }
}

void loop() {
  // put your main code here, to run repeatedly:

}