void setup() {
  // put your setup code here, to run once:
 pinMode(13, OUTPUT);
 pinMode(12, OUTPUT);
 pinMode(33, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  // this speeds up the simulation
  digitalWrite(13, HIGH);
  delay(1000);
  digitalWrite(13, LOW);
  delay(1000);

  digitalWrite(12, HIGH);
  delay(1000);
  digitalWrite(12, LOW);
  delay(1000);



  
  digitalWrite(33, HIGH);
  delay(1000);
  digitalWrite(33, LOW);
  delay(1000);


}