int purple = 9 ;
int blue = 10 ; 
int red = 11 ; 
int yellow = 12 ; 
int green = 13 ; 

void setup() {
  // put your setup code here, to run once:
  pinMode(red, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(purple, HIGH);
  delay (2000);
  digitalWrite(purple, LOW);
  delay (500);

  digitalWrite(blue, HIGH);
  delay (2000);
  digitalWrite(blue, LOW);
  delay (500);

  digitalWrite(red, HIGH);
  delay (2000);
  digitalWrite(red, LOW);
  delay (500);

  digitalWrite(yellow, HIGH);
  delay (2000);
  digitalWrite(yellow, LOW);
  delay (500);

  digitalWrite(green, HIGH);
  delay (500);
  digitalWrite(green, LOW);
  delay (500);
}