//int led1 = 2;
//int led2 = 3;

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  for (int x = 2 ; x<= 5 ;x++){
    pinMode(x, OUTPUT);
  }
//  pinMode(led2, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  for (int y = 2 ; y<= 5 ;y++){
    ledBlink(y, 500);
//  ledBlink(led2);
  }
}


void ledBlink(int p, int t){   // p LED pin number, t time(ms) for the blink
  digitalWrite(p, HIGH);  // turn the LED on (HIGH is the voltage level)
  delay(t);                      // wait for a second
  digitalWrite(p, LOW);   // turn the LED off by making the voltage LOW
  delay(t);                      // wait for a second
  }