void setup() {
  
  Serial.begin(115200);
 pinMode(12,OUTPUT);
 pinMode(14,OUTPUT);
 pinMode(27,OUTPUT);
 pinMode(2,OUTPUT);
 pinMode(4,OUTPUT);
 pinMode(5,OUTPUT);
}

void loop() {
  digitalWrite(12, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(14, LOW);
  digitalWrite(27, LOW);
  digitalWrite(4, LOW);
  digitalWrite(2, LOW);
  delay(3000);
  digitalWrite(14, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(12,LOW);
  digitalWrite(27, LOW);
  digitalWrite(5, LOW);
  digitalWrite(2, LOW);
  delay(3000);
  digitalWrite(27, HIGH);
  digitalWrite(2, HIGH);
  digitalWrite(12, LOW);
  digitalWrite(14, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  delay(3000);
}