#define RED 16
#define GREEN 15
#define BLUE 14
void setup()
{
  pinMode(16, OUTPUT);
  pinMode(15, OUTPUT);
  pinMode(14, OUTPUT);
}

void loop()
{
  digitalWrite(16, 1);
  delay(1000);
  digitalWrite(16,0);
  digitalWrite(15,1);
  delay(1000);
  digitalWrite(15,0);
  digitalWrite(14,1);
delay(1000);
digitalWrite(14,0);

}