//3, 5, 6, 9, 10, 11

int Pins[] = { 3, 5, 6, 9, 10, 11 };
int Delay(100);
void setup() {
  for (int i = 0; i < 14; i++) {
    pinMode(i, OUTPUT);
  }
  for (int j = 0; j < 3; j++) {
    for (int i = 0; i < 14; i++) {

      digitalWrite(i, 1);
      delay(Delay);
    }
    for (int i = 14; i > 0; i--) {
      digitalWrite(i, 0);
      delay(Delay);
    }
  }
}

void loop() {
  for (int i = 0; i < 255; i++) {
    for (int j = 0; j < 6; j++) {
      analogWrite(Pins[j], i);
      delay(Delay);
    }
  }
  for (int i = 255; i > 0; i--) {
    for (int j = 0; j < 6; j++) {
      analogWrite(Pins[j], i);
      delay(Delay);
    }
  }
}