const int numLEDs = 11;
const int ledPins[numLEDs] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11,12};
const int delayTime = 200; // Delay time in milliseconds

void setup() {
  // Initialize all the LED pins as outputs
  for (int i = 0; i < numLEDs; i++) {
    pinMode(ledPins[i], OUTPUT);
  }
}

void loop() {
  // Turn on each LED one by one
  for (int i = 0; i < numLEDs; i++) {
    digitalWrite(ledPins[i], HIGH);
    delay(delayTime);
    digitalWrite(ledPins[i], LOW);
  }
}