int redPin = 2;    // Qizil chiroq uchun pin
int yellowPin = 3; // Sariq chiroq uchun pin
int greenPin = 4;  // Yashil chiroq uchun pin
int delayTimes[] = {3000, 2000, 1000}; // Jufliklardagi vaqt oralig'lar

void setup() {
  pinMode(redPin, OUTPUT);    // Qizil chiroqni OUTPUT sifatida sozlash
  pinMode(yellowPin, OUTPUT); // Sariq chiroqni OUTPUT sifatida sozlash
  pinMode(greenPin, OUTPUT);  // Yashil chiroqni OUTPUT sifatida sozlash
}

void loop() {
  // 3 ta parallel chiroqlar
  digitalWrite(redPin, HIGH);    // Qizil chiroqni yonish
  digitalWrite(yellowPin, HIGH); // Sariq chiroqni yonish
  digitalWrite(greenPin, HIGH);  // Yashil chiroqni yonish
  delay(1500);  // 1.5 sekund kutish

  // Jufliklardagi chiroqlar
  for (int i = 0; i < 3; i++) {
    digitalWrite(redPin, HIGH);    // Qizil chiroqni yonish
    digitalWrite(yellowPin, HIGH); // Sariq chiroqni yonish
    digitalWrite(greenPin, HIGH);  // Yashil chiroqni yonish
    delay(delayTimes[i]);  // Jufliktagi vaqt oraligini kutish
    digitalWrite(redPin, LOW);     // Qizil chiroqni o'chirish
    digitalWrite(yellowPin, LOW);  // Sariq chiroqni o'chirish
    digitalWrite(greenPin, LOW);   // Yashil chiroqni o'chirish
  }
}