void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(14, OUTPUT);
  pinMode(15, OUTPUT);
  pinMode(25, OUTPUT);
  pinMode(26, OUTPUT);
}

void loop() {
  digitalWrite(12,HIGH);
  digitalWrite(13, LOW);
  digitalWrite(14,LOW);
  digitalWrite(15,LOW);
  digitalWrite(25, LOW);
  digitalWrite(26, HIGH);
  delay(1000);
  digitalWrite(12, LOW);
  digitalWrite(13, HIGH);
  digitalWrite(14, LOW);
  digitalWrite(15, LOW);
  digitalWrite(25, HIGH);
  digitalWrite(26, LOW);
  delay(1000);
  digitalWrite(12,LOW);
  digitalWrite(13, LOW);
  digitalWrite(14,HIGH);
  digitalWrite(15,HIGH);
  digitalWrite(25, LOW);
  digitalWrite(26, LOW);
  delay(1000);
  
}