int led[] = {32, 33, 25, 26, 27, 14, 12, 13};
int ledCount = sizeof(led);
bool litup = false;
void setup() {
  for (int i = 0; i < ledCount; i++)
    pinMode(led[i], OUTPUT);
}
void loop() {
  for (int i = 0; i < ledCount; i++)
    digitalWrite(led[i], litup ? LOW : HIGH);
  litup = !litup;
  delay(1000);
}