#define digit1 26
#define digit2 27
int digit[10] = {0x3f, 0x06, 0x5b, 0x4f, 
              0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f};
void setup() {
  for (int i = 12; i <= 27; i++)
  {
    pinMode(i, OUTPUT);//enable pin12 to pin 27 as output
  }
}

void loop() {
  for (int j = 12; j <= 18; j++) {
    digitalWrite(j, bitRead(digit[2], j - 12));
    digitalWrite(digit1, 0);
    digitalWrite(digit2, 1);
  }
  delay(10);
  for (int j = 12; j <= 18; j++) {
    digitalWrite(j, bitRead(digit[1], j - 12));
    digitalWrite(digit1, 1);
    digitalWrite(digit2, 0);
  }  
}