void setup() {
  pinMode(2, OUTPUT);
  pinMode(16, OUTPUT);
  pinMode(18, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(14, OUTPUT);
  pinMode(25, OUTPUT);
}

void loop() {
  digitalWrite(2,HIGH);
  digitalWrite(16,LOW);
  digitalWrite(18,LOW);
  digitalWrite(13,LOW);
  digitalWrite(14,LOW);
  digitalWrite(25,HIGH);
  delay(1500);
  digitalWrite(2,LOW);
  digitalWrite(16,HIGH);
  digitalWrite(18,LOW);
  digitalWrite(13,LOW);
  digitalWrite(14,HIGH);
  digitalWrite(25,LOW);
  delay(1500);
  digitalWrite(2,LOW);
  digitalWrite(16,LOW);
  digitalWrite(18,HIGH);
  digitalWrite(13,HIGH);
  digitalWrite(14,LOW);
  digitalWrite(25,LOW);
  delay(1500);
  digitalWrite(2,LOW);
  digitalWrite(16,HIGH);
  digitalWrite(18,LOW);
  digitalWrite(13,LOW);
  digitalWrite(14,HIGH);
  digitalWrite(25,LOW);
  delay(1500);
  
}