// Pin numbers for the LEDs
int greenLED = 8;
int yellowLED = 9;
int redLED = 10;

void setup() {
  // Initialize the LED pins as outputs
  pinMode(greenLED, OUTPUT);
  pinMode(yellowLED, OUTPUT);
  pinMode(redLED, OUTPUT);
}

void loop() {
  // Green light for 6 seconds
  digitalWrite(greenLED, HIGH);
  delay(6000); // 6000 milliseconds is 6 seconds
  digitalWrite(greenLED, LOW);
  
  // Yellow light blinks for 2 seconds
  int count;
  for (count = 0; count < 4; count = count + 1) { // Blink yellow LED twice for a total of 2 seconds
    digitalWrite(yellowLED, HIGH); // Turn on yellow LED
    delay(250); // Keep it on for 250 milliseconds
    digitalWrite(yellowLED, LOW); // Turn off yellow LED
    delay(250); // Keep it off for 250 milliseconds
  }
  
  // Red light for 5 seconds
  digitalWrite(redLED, HIGH);
  delay(5000); // 5000 milliseconds is 5 seconds
  digitalWrite(redLED, LOW);
  
  // The loop() function will run these commands over and over again, creating a repeating sequence.
}