#define LED 5
#define LED 18
#define LED 17
void setup() {
  pinMode(5,OUTPUT);
  pinMode(18,OUTPUT);
  pinMode(17,OUTPUT);
}

void loop() {
  digitalWrite(5,HIGH);
  delay(200);
  digitalWrite(5,LOW);
  delay(300);
  digitalWrite(18,HIGH);
  delay(200);
  digitalWrite(18,LOW);
  delay(300);
  digitalWrite(17,HIGH);
  delay(200);
  digitalWrite(17,LOW);
  delay(300);
  digitalWrite(18,HIGH);
  delay(200);
  digitalWrite(18,LOW);
  delay(300);
}