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const int kLed = 10;

void setup() {
  // LED on pin 13
  pinMode(kLed, OUTPUT);
}

void loop() {
  for (int i = 0; i < 3; i++) {
    digitalWrite(kLed, HIGH);
    delay(50);
    digitalWrite(kLed, LOW);
    delay(250);
  }
  delay(1100);
  digitalWrite(kLed, HIGH);
  delay(900);
  digitalWrite(kLed, LOW);
  delay(900);
}