//Traffic intersection

#define RED 1
#define YELLOW 5
#define GREEN 9
#define RED2 18
#define YELLOW2 17
#define GREEN2 16


void setup() {
  pinMode(RED, OUTPUT);
  pinMode(YELLOW, OUTPUT);
  pinMode(GREEN, OUTPUT);
    pinMode(RED2, OUTPUT);
  pinMode(YELLOW2, OUTPUT);
  pinMode(GREEN2, OUTPUT);
}

void loop() {
  digitalWrite(RED2, HIGH);
  delay(4000);

  digitalWrite(RED, LOW);
  delay(200);

  digitalWrite(GREEN, HIGH);
  delay(5000);
  digitalWrite(GREEN, LOW); 
  delay(200);

  digitalWrite(YELLOW, HIGH);
  delay(3000);
  digitalWrite(YELLOW, LOW);
  delay(200);

  digitalWrite(RED, HIGH);
  delay(4000);

  digitalWrite(RED2, LOW);
  delay(200);
  digitalWrite(GREEN2, HIGH);
  delay(5000);
  digitalWrite(GREEN2, LOW); 
  delay(200);

  digitalWrite(YELLOW2, HIGH);
  delay(3000);
  digitalWrite(YELLOW2, LOW);
  delay(200);

  
 
  
}