// Blink an LED connected to digital pin 13
// Components: LED, 220Ω resistor, breadboard, Arduino

const int ledPin = 13;   // LED connected to digital pin 13
const int ledPin1 = 12;
const int ledPin2 = 10;


void setup() {
 
 pinMode(ledPin, OUTPUT);  // Set pin 13 as an output
 pinMode(ledPin2,OUTPUT);
 pinMode(ledPin1,OUTPUT);
}


void loop() {
  digitalWrite(ledPin, HIGH);  // Turn the LED on
  delay(1000);                 // Wait for 1 second

  digitalWrite(ledPin, LOW);   // Turn the LED off
  delay(1000);  
                 // Wait for 1 second
   digitalWrite(ledPin2, HIGH);  // Turn the LED on
  delay(1000);                 // Wait for 1 second

  digitalWrite(ledPin2, LOW);   // Turn the LED off
  delay(1000);                 // W



   digitalWrite(ledPin1, HIGH);  // Turn the LED on
  delay(1000);                 // Wait for 1 second
  digitalWrite(ledPin1, LOW);   // Turn the LED off
  delay(1000);                 // Wait for 1 second
}