void setup() {
  pinMode(11,OUTPUT);
    pinMode(10,OUTPUT);
      pinMode(9,OUTPUT);
}

void loop() {
  // taskA();
  taskB();
}
void taskA(){
  digitalWrite(11, 255);
  digitalWrite(10, 0);
  digitalWrite(9, 0);
  delay(2000);
  digitalWrite(11, 0);
  digitalWrite(10, 255);
  digitalWrite(9, 0);
  delay(2000);
    digitalWrite(11,0 );
  digitalWrite(10, 0);
  digitalWrite(9, 255);
  delay(2000);

}
void taskB(){
  digitalWrite(11, 0);
  digitalWrite(10, 0);
  digitalWrite(9, 255);
  delay(1000);
  digitalWrite(11, 0);
  digitalWrite(10, 255);
  digitalWrite(9, 0);
  delay(1000);
    digitalWrite(11,255);
  digitalWrite(10, 0);
  digitalWrite(9, 0);
  delay(1000);

}