int rgb1=5;
int rgb2=18;
int rgb3=21;
int rgb12=14;
int rgb22=12;
int rgb32=27;
void setup(){
  pinMode(rgb1, OUTPUT);
  pinMode(rgb2, OUTPUT);
  pinMode(rgb3, OUTPUT);
  pinMode(rgb12, OUTPUT);
  pinMode(rgb22, OUTPUT);
  pinMode(rgb32, OUTPUT);
}
void loop(){
  digitalWrite(rgb3, HIGH);
  digitalWrite(rgb2, LOW);
  digitalWrite(rgb1, LOW);
  digitalWrite(rgb32, HIGH);
  digitalWrite(rgb22, LOW);
  digitalWrite(rgb12, LOW);
  delay(1000);
  digitalWrite(rgb3, HIGH);
  digitalWrite(rgb2, HIGH);
  digitalWrite(rgb1, LOW);
  digitalWrite(rgb32, HIGH);
  digitalWrite(rgb22, HIGH);
  digitalWrite(rgb12, LOW);
  delay(1000);
  digitalWrite(rgb3, LOW);
  digitalWrite(rgb2, HIGH);
  digitalWrite(rgb1, LOW);
  digitalWrite(rgb32, LOW);
  digitalWrite(rgb22, HIGH);
  digitalWrite(rgb12, LOW);
  delay(1000);
  digitalWrite(rgb3, HIGH);
  digitalWrite(rgb2, HIGH);
  digitalWrite(rgb1, LOW);
  digitalWrite(rgb32, HIGH);
  digitalWrite(rgb22, HIGH);
  digitalWrite(rgb12, LOW);
  delay(1000);
}