int red = 21;
int yellow= 4;
int green= 15;
int redder= 26;
int yellower= 27;
int greener= 14;
int reddest= 19;
int yellowest= 18;
int greenest= 5;

void setup() {

  pinMode(red, OUTPUT);
  digitalWrite(red, LOW);
  pinMode(yellow, OUTPUT);
  digitalWrite(yellow, LOW);
  pinMode(green, OUTPUT);
  digitalWrite(green, LOW);
  pinMode(redder, OUTPUT);
  digitalWrite(redder, LOW);
  pinMode(yellower, OUTPUT);
  digitalWrite(yellower, LOW);
  pinMode(greener, OUTPUT);
  digitalWrite(greener, LOW);
  pinMode(reddest, OUTPUT);
  digitalWrite(reddest, LOW);
  pinMode(yellowest, OUTPUT);
  digitalWrite(yellowest, LOW);
  pinMode(greenest, OUTPUT);
  digitalWrite(greenest, LOW);

}

void loop() {
  digitalWrite(red, HIGH);
  digitalWrite(reddest, HIGH);
  digitalWrite(greener, HIGH);
  delay(8000);
  digitalWrite(greener, LOW);
  digitalWrite(yellower, HIGH);
  delay(2500);
  digitalWrite(yellower, LOW);
  digitalWrite(redder, HIGH);
  digitalWrite(red, LOW);
  digitalWrite(reddest, LOW);
  digitalWrite(green, HIGH);
  digitalWrite(greenest, HIGH);
  delay(8000);
  digitalWrite(green, LOW);
  digitalWrite(greenest, LOW);
  digitalWrite(yellow, HIGH);
  digitalWrite(yellowest, HIGH);
  delay(2500);
  digitalWrite(yellow, LOW);
  digitalWrite(yellowest, LOW);
  digitalWrite(redder, LOW);
}