int R=2;
int G=4;
int B=5;

void setup() {
  pinMode(R,OUTPUT);
  pinMode(G,OUTPUT);
  pinMode(B,OUTPUT);
 
 
}

void loop() {
  //Red
  digitalWrite(R,0);
  digitalWrite(G,1);
  digitalWrite(B,1);
  delay(1000);
  //Green
  digitalWrite(R,1);
  digitalWrite(G,0);
  digitalWrite(B,1);
  delay(1000);
  //Blue
  digitalWrite(R,1);
  digitalWrite(G,1);
  digitalWrite(B,0);
  delay(1000);
  
  //Yellow
 digitalWrite(R,0);
 digitalWrite(G,0);
 digitalWrite(B,1);
 delay(1000);
//Purple
 digitalWrite(R,0);
 digitalWrite(B,0);
 digitalWrite(G,1);
 delay(1000);
 //Greenish Blue
 digitalWrite(G,0);
 digitalWrite(B,0);
 digitalWrite(R,1);
 delay(1000);
 //White
 digitalWrite(R,0);
 digitalWrite(B,0);
 digitalWrite(G,0);
 delay(1000);

}