#define LED 13
#define LED1 19
#define LED2 4

void setup() {
pinMode(LED, OUTPUT);
pinMode(LED1, OUTPUT);
pinMode(LED2, OUTPUT);
}

void loop() {
  digitalWrite(LED, HIGH);
  delay(500);
  digitalWrite(LED, LOW);
  delay(500);
  digitalWrite(LED1, HIGH);
  delay(700);
  digitalWrite(LED1, LOW);
  delay(700);
  digitalWrite(LED2, HIGH);
  delay(900);
  digitalWrite(LED2, LOW);
  delay(900);
}