int pins[] = {2, 3, 4, 5, 6, 7, 8, 9};
int pr_one[] = {1, 0, 1, 1, 1, 1, 1, 0};

void setup() {
  for (int i=0; i < 8; i++)
    pinMode(pins[i], OUTPUT);
}

void print_one(){
  for (int i=0; i < 8; i++)
    digitalWrite(pins[i], pr_one[i]);
}

void loop() {
  print_one();
}