void setup() {
  for (int i = 11; i < 14; i++) {
    pinMode(i, OUTPUT);
  }
}

void onAndOff() {
  for (int i = 11; i < 14; i++) {
    digitalWrite(i, HIGH);
  }
  delay(5000);
  for (int i = 11; i < 14; i++) {
    digitalWrite(i, LOW);
  }
  delay(5000);
}

void runningLight() {
  for (int i = 11; i < 14; i++) {
    digitalWrite(i, HIGH);
    digitalWrite(i-1, LOW);
    delay(500);
  }
  digitalWrite(13, LOW);
}
void runningShade() {
  for (int i = 11; i < 14; i++) {
    digitalWrite(i, HIGH);
  }
  for (int i = 11; i < 14; i++) {
    digitalWrite(i, LOW);
    digitalWrite(i-1, HIGH);
    delay(1000);
  }
  for (int i = 13; i > 11; i--) {
    digitalWrite(i, LOW);
    digitalWrite(i+1, HIGH);
    delay(1000);
  }
}

void off() {
  for (int i = 11; i < 14; i++) {
    digitalWrite(i, LOW);
  }
}

void venom() {
  for (int i = 12; i < 14; i++) {
    if (i == 12) {
      digitalWrite(i, HIGH);
      delay(500);
    }
    else {
      digitalWrite(i, HIGH);
      digitalWrite(i-1, LOW);
      digitalWrite(11, HIGH);
      delay(500);
    }
  }
  for (int i = 11; i < 14; i++) {
    digitalWrite(i, HIGH);
  }
  delay(500);
  for (int i = 12; i < 14; i++) {
    if (i == 12) {
      digitalWrite(i, LOW);
      delay(500);
    }
    else {
      digitalWrite(i, LOW);
      digitalWrite(i-1, HIGH);
      digitalWrite(11, LOW);
      delay(500);
    }
  }
  delay(1000);
}

void loop() {
  // onAndOff();
  // runningLight();
  // runningShade();
  venom();
  off();
}