void setup() {
  pinMode(8, OUTPUT);
  pinMode(3, OUTPUT);
}
void loop(){
  // taskA();
  taskB();
  // taskC();
}

void taskA(){

  digitalWrite(8, 255);
  digitalWrite(3, 255);
  delay(250);
  digitalWrite(8, 0);
  digitalWrite(3, 0);
  delay(250);
}

void taskB() {

  digitalWrite(8, 255);
  digitalWrite(3, 0);
  delay(1000);
  digitalWrite(8, 0);
  delay(1000);
  digitalWrite(8, 255);
  delay(1000);
  digitalWrite(8, 0);
  delay(1000);
  digitalWrite(8, 255);
  delay(1000);
  digitalWrite(8, 0);
  delay(1000);
  digitalWrite(3,255);
  delay(1000);
  digitalWrite(3, 0);
  delay(1000);
  digitalWrite(3, 255);
  delay(1000);
  digitalWrite(3, 0);
  delay(1000);
  digitalWrite(3, 255);
  delay(1000);
  digitalWrite(8, 0);
  digitalWrite(3, 0);
  delay(1000);

}
void taskC(){
  
  digitalWrite(8, 255);
  digitalWrite(3, 0);
  delay(2000);

  digitalWrite(8, 0);
  digitalWrite(3, 255);
  delay(2000);
}