const int redPin1 = 2;    // Red LED for lane 1
const int yellowPin1 = 3; // Yellow LED for lane 1
const int greenPin1 = 4;  // Green LED for lane 1

const int redPin2 = 5;    // Red LED for lane 2
const int yellowPin2 = 6; // Yellow LED for lane 2
const int greenPin2 = 7;  // Green LED for lane 2

const int redPin3 = 8;    // Red LED for lane 3
const int yellowPin3 = 9; // Yellow LED for lane 3
const int greenPin3 = 10; // Green LED for lane 3

void setup() {
  pinMode(redPin1, OUTPUT);
    pinMode(yellowPin1, OUTPUT);
      pinMode(greenPin1, OUTPUT);

        pinMode(redPin2, OUTPUT);
          pinMode(yellowPin2, OUTPUT);
            pinMode(greenPin2, OUTPUT);

              pinMode(redPin3, OUTPUT);
                pinMode(yellowPin3, OUTPUT);
                  pinMode(greenPin3, OUTPUT);
                  }

                  void loop() {
                    // Lane 1: Red
                      digitalWrite(redPin1, HIGH);
                        digitalWrite(yellowPin1, LOW);
                          digitalWrite(greenPin1, LOW);
                            delay(3000); // Wait for 3 seconds

                              // Lane 1: Green
                                digitalWrite(redPin1, LOW);
                                  digitalWrite(yellowPin1, LOW);
                                    digitalWrite(greenPin1, HIGH);
                                      delay(5000); // Wait for 3 seconds

                                        // Lane 1: Yellow
                                          digitalWrite(redPin1, LOW);
                                            digitalWrite(yellowPin1, HIGH);
                                              digitalWrite(greenPin1, LOW);
                                                delay(5000); // Wait for 1 second

                                                  // Repeat the same pattern for other lanes (2 and 3)
                                                  }