int RANGGUS[] = {8, 5, 3};
void setup() {
  // put your setup code here, to run once:
pinMode(RANGGUS[0], OUTPUT);
pinMode(RANGGUS[1], OUTPUT);
pinMode(RANGGUS[2], OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(RANGGUS[0], HIGH);
digitalWrite(RANGGUS[1], LOW);
digitalWrite(RANGGUS[2], LOW);
delay(3000);

digitalWrite(RANGGUS[0], LOW);
digitalWrite(RANGGUS[1], HIGH);
digitalWrite(RANGGUS[2], LOW);
delay(3000);

digitalWrite(RANGGUS[0], LOW);
digitalWrite(RANGGUS[1], LOW);
digitalWrite(RANGGUS[2], HIGH);
delay(3000);
}