int ledNRed = 2;
int ledNYellow = 3;
int ledNGreen = 4;

int ledSRed = 5;
int ledSYellow = 6;
int ledSGreen = 7;


int ledERed = 8;
int ledEYellow = 9;
int ledEGreen = 10;


int ledWRed = 11;
int ledWYellow = 12;
int ledWGreen = 13;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);

  pinMode(ledNRed, OUTPUT);
  pinMode(ledNYellow, OUTPUT);
  pinMode(ledNGreen, OUTPUT);


  pinMode(ledSRed, OUTPUT);
  pinMode(ledSYellow, OUTPUT);
  pinMode(ledSGreen, OUTPUT);

  pinMode(ledWRed, OUTPUT);
  pinMode(ledWYellow, OUTPUT);
  pinMode(ledWGreen, OUTPUT);

  pinMode(ledERed, OUTPUT);
  pinMode(ledEYellow, OUTPUT);
  pinMode(ledEGreen, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(ledNGreen, HIGH);
  digitalWrite(ledNYellow, LOW);
  digitalWrite(ledNRed, LOW);

  digitalWrite(ledSGreen, HIGH);
  digitalWrite(ledSYellow, LOW);
  digitalWrite(ledSRed, LOW);

  digitalWrite(ledEGreen, LOW);
  digitalWrite(ledEYellow, LOW);
  digitalWrite(ledERed, HIGH);

  digitalWrite(ledWGreen, LOW);
  digitalWrite(ledWYellow, LOW);
  digitalWrite(ledWRed, HIGH);
  delay(5000);

digitalWrite(ledNGreen,LOW);
    digitalWrite(ledNYellow,HIGH);
    digitalWrite(ledNRed,LOW);
    digitalWrite(ledSGreen,LOW);
    digitalWrite(ledSYellow,HIGH);
    digitalWrite(ledSRed,LOW);

    digitalWrite(ledERed,HIGH);
    digitalWrite(ledEYellow,LOW);
    digitalWrite(ledEGreen,LOW);
    digitalWrite(ledWRed,HIGH);
    digitalWrite(ledWYellow,LOW);
    digitalWrite(ledWGreen,LOW);

    delay(5000);

  digitalWrite(ledNGreen, LOW);
  digitalWrite(ledNYellow, HIGH);
  digitalWrite(ledNRed, LOW);

  digitalWrite(ledSGreen, LOW);
  digitalWrite(ledSYellow, HIGH);
  digitalWrite(ledSRed, LOW);


  
  delay(3000);

  digitalWrite(ledNGreen, LOW);
  digitalWrite(ledNYellow, LOW);
  digitalWrite(ledNRed, HIGH);

  digitalWrite(ledSGreen, LOW);
  digitalWrite(ledSYellow, LOW);
  digitalWrite(ledSRed, HIGH);

  digitalWrite(ledWGreen, HIGH);
  digitalWrite(ledWYellow, LOW);
  digitalWrite(ledERed, LOW);

  digitalWrite(ledEGreen, HIGH);
  digitalWrite(ledEYellow, LOW);
  digitalWrite(ledERed, LOW);
  delay(10000);
}