// Define the pin numbers for the LEDs
const int greenLED = 10;
const int yellowLED = 11;
const int redLED = 12;

void setup() {
  pinMode(greenLED, OUTPUT);
    pinMode(yellowLED, OUTPUT);
      pinMode(redLED, OUTPUT);
      }

      void loop() {
        // Green light
          digitalWrite(greenLED, HIGH);
            digitalWrite(yellowLED, LOW);
              delay(10000); // Keep green light on for 5 seconds

                // Yellow light
                  digitalWrite(greenLED, LOW);
                    digitalWrite(yellowLED, HIGH);
                      delay(2000); // Keep yellow light on for 2.5 seconds

                        // Red light
                          digitalWrite(yellowLED, LOW);
                            digitalWrite(redLED, HIGH);
                              delay(10000); // Keep red light on for 5 seconds

                                // Back to yellow
                                  digitalWrite(redLED, LOW);
                                    digitalWrite(yellowLED, HIGH);
                                      delay(5000); // Keep yellow light on for 5 seconds
                                      // Define the pin numbers for the LEDs
                                      const int greenLED = 12;
                                      const int yellowLED = 11;
                                      const int redLED = 10;

                                      void setup() {
                                        pinMode(greenLED, OUTPUT);
                                          pinMode(yellowLED, OUTPUT);
                                            pinMode(redLED, OUTPUT);
                                            }

                                            void loop() {
                                              // Green light
                                                digitalWrite(greenLED, HIGH);
                                                  digitalWrite(yellowLED, LOW);
                                                    delay(5000); // Keep green light on for 5 seconds

                                                      // Yellow light
                                                        digitalWrite(greenLED, LOW);
                                                          digitalWrite(yellowLED, HIGH);
                                                            delay(2500); // Keep yellow light on for 2.5 seconds

                                                              // Red light
                                                                digitalWrite(yellowLED, LOW);
                                                                  digitalWrite(redLED, HIGH);
                                                                    delay(5000); // Keep red light on for 5 seconds

                                                                      // Back to yellow
                                                                        digitalWrite(redLED, LOW);
                                                                          digitalWrite(yellowLED, HIGH);
                                                                            delay(5000); // Keep yellow light on for 5 seconds
                                                                            }