// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(2, HIGH);  // turn the LED on (HIGH is the voltage level)
  delay(2000);            // wait for a second
  //digitalWrite(2, LOW);   // turn the LED off by making the voltage LOW
  //delay(2000);
  digitalWrite(3, HIGH); 
  delay(2000);
   digitalWrite(2, LOW);
   delay(2000); 
    digitalWrite(3, LOW);
   delay(2000); 
   
}