const int redLEDpin = 3;
const int yellowLEDpin = 4;
const int greenLEDpin = 5;
const int greenLedpin = 6;
const int yellowLedpin = 7;
const int redLedpin = 8;

void setup() {
  Serial.begin(9600);
  // put your setup code here, to run once:
  
  pinMode(redLEDpin, OUTPUT);
  pinMode(yellowLEDpin, OUTPUT);
  pinMode(greenLEDpin, OUTPUT);
  pinMode(greenLedpin, OUTPUT);
  pinMode(yellowLedpin, OUTPUT);
  pinMode(redLedpin, OUTPUT);

  

}

void loop() {
  // put your main code here, to run repeatedly:
  
digitalWrite(redLEDpin, HIGH);
  digitalWrite(yellowLEDpin, LOW);
  digitalWrite(greenLEDpin, LOW);
  digitalWrite(greenLedpin, LOW);
  digitalWrite(yellowLedpin, LOW);
  digitalWrite(redLedpin,HIGH);




  digitalWrite(redLEDpin, HIGH);
  digitalWrite(yellowLEDpin, LOW);
  digitalWrite(greenLEDpin, LOW);
  digitalWrite(greenLedpin, LOW);
  digitalWrite(yellowLedpin, LOW);
  digitalWrite(redLedpin, HIGH);
  Serial.println("ting");

   delay(500); 

   digitalWrite(redLEDpin, LOW);
   digitalWrite(yellowLEDpin, HIGH);
   digitalWrite(greenLEDpin, LOW);
   digitalWrite(greenLedpin, LOW);
  digitalWrite(yellowLedpin, HIGH);
  digitalWrite(redLedpin, LOW);
   Serial.println("nung");
   delay(250);

    digitalWrite(redLEDpin, LOW);
    digitalWrite(yellowLEDpin, LOW);
    digitalWrite(greenLEDpin, HIGH);
    digitalWrite(greenLedpin, HIGH);
  digitalWrite(yellowLedpin, LOW);
  digitalWrite(redLedpin, LOW);
    Serial.println("ting");

    delay(250);

    digitalWrite(redLEDpin, LOW);
    digitalWrite(yellowLEDpin, HIGH);
    digitalWrite(greenLEDpin, LOW);
    digitalWrite(greenLedpin, LOW);
  digitalWrite(yellowLedpin, HIGH);
  digitalWrite(redLedpin, LOW);

    delay(250);

    digitalWrite(redLEDpin, HIGH);
    digitalWrite(yellowLEDpin, LOW);
    digitalWrite(greenLEDpin, LOW);
    digitalWrite(greenLedpin, LOW);
  digitalWrite(yellowLedpin, LOW);
  digitalWrite(redLedpin, HIGH);
  

  delay(100);
}