// Define pin numbers for LEDs and button
int redLED = 11;
int yellowLED = 12;
int greenLED = 13;
int button = 2;
int buttonState = 0;
bool blinking = false;  

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

void loop() {
  // Read the button state
  buttonState = digitalRead(button);

  if (buttonState == HIGH) {
    blinking = true;
  }
    
    if (blinking) {
    // Red light for 30 seconds
    digitalWrite(redLED, HIGH);
    digitalWrite(yellowLED, LOW);
    digitalWrite(greenLED, LOW);
    delay(30000); 
    
    // Yellow light for 1 second
    digitalWrite(redLED, LOW);
    digitalWrite(yellowLED, HIGH);
    digitalWrite(greenLED, LOW);
    delay(1000);
    
    // Green light for 30 seconds
    digitalWrite(redLED, LOW);
    digitalWrite(yellowLED, LOW);
    digitalWrite(greenLED, HIGH);
    delay(30000);
    
    // Red light for 30 seconds 
    digitalWrite(redLED, HIGH);
    digitalWrite(yellowLED, LOW);
    digitalWrite(greenLED, LOW);
    delay(30000);
  } else {
    digitalWrite(redLED, LOW);
    digitalWrite(yellowLED, LOW);
    digitalWrite(greenLED, LOW);
  }

}