void setup() {
  pinMode(2, OUTPUT);
  pinMode(3,OUTPUT);
  pinMode(4,OUTPUT);
  pinMode(5,OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7,OUTPUT);
  pinMode(8,OUTPUT);
  pinMode(9,OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11,OUTPUT);
  pinMode(12,OUTPUT);
  pinMode(13,OUTPUT);

}

void loop() {
  digitalWrite(2, LOW); // red LED
  digitalWrite(3, LOW); // orange LED
  digitalWrite(4, HIGH); // green LED

  digitalWrite(5, HIGH); // red LED
  digitalWrite(6, LOW); // orange LED
  digitalWrite(7, LOW); // green LED

  digitalWrite(8, LOW); // red LED
  digitalWrite(9, LOW); // orange LED
  digitalWrite(10, HIGH); // green LED

  digitalWrite(11, HIGH); // red LED
  digitalWrite(12, LOW); // orange LED
  digitalWrite(13, LOW); // green LED
  delay(5000); // wait for 5 seconds

  digitalWrite(2, LOW); // red LED
  digitalWrite(3, HIGH); // orange LED
  digitalWrite(4, LOW); // green LED
  
  digitalWrite(5, HIGH); // red LED
  digitalWrite(6, LOW); // orange LED
  digitalWrite(7, LOW); // green LED

  digitalWrite(8, LOW); // red LED
  digitalWrite(9, HIGH); // orange LED
  digitalWrite(10, LOW); // green LED
  
  digitalWrite(11, HIGH); // red LED
  digitalWrite(12, LOW); // orange LED
  digitalWrite(13, LOW); // green LED
  delay(3000); // wait for 3 seconds

  digitalWrite(2, HIGH); // red LED
  digitalWrite(3, LOW); // orange LED
  digitalWrite(4, LOW); // green LED

  digitalWrite(5, LOW); // red LED
  digitalWrite(6, LOW); // orange LED
  digitalWrite(7, HIGH); // green LED

  digitalWrite(8, HIGH); // red LED
  digitalWrite(9, LOW); // orange LED
  digitalWrite(10, LOW); // green LED

  digitalWrite(11, LOW); // red LED
  digitalWrite(12, LOW); // orange LED
  digitalWrite(13, HIGH); // green LED
  delay(5000); // wait for 5 seconds

  digitalWrite(2, HIGH); // red LED
  digitalWrite(3, LOW); // orange LED
  digitalWrite(4, LOW); // green LED
  
  digitalWrite(5, LOW); // red LED
  digitalWrite(6, HIGH); // orange LED
  digitalWrite(7, LOW); // green LED

  digitalWrite(8, HIGH); // red LED
  digitalWrite(9, LOW); // orange LED
  digitalWrite(10, LOW); // green LED
  
  digitalWrite(11, LOW); // red LED
  digitalWrite(12, HIGH); // orange LED
  digitalWrite(13, LOW); // green LED
  delay(3000); // wait for 3 seconds

}