//GROUP 7 ( 16DTK22F1002, 16DTK22F1006, 16DTK22F1007 )

int green = 13; 
int yellow = 8; 
int red = 4;

void setup ()
{
  pinMode (red,OUTPUT);
  pinMode (green,OUTPUT);
  pinMode (yellow,OUTPUT);
}

void loop () { 
  digitalWrite(green,HIGH);
  delay(1000);
  digitalWrite(green,LOW);
  delay(0);
  digitalWrite(yellow,HIGH);
  delay(1000);
  digitalWrite(yellow,LOW);
  delay(0);
  digitalWrite(red,HIGH);
  delay(1000);
  digitalWrite(red,LOW);
  delay(0);
}