#define LED_green 10
#define LED_red 11
#define LED_yellow 12

void setup() {
  // put your setup code here, to run once:
pinMode(LED_red, OUTPUT);
pinMode(LED_yellow, OUTPUT);
pinMode(LED_green, OUTPUT);
digitalWrite(LED_red, LOW);
digitalWrite(LED_yellow, LOW);
digitalWrite(LED_green, LOW);
Serial.begin (9600);
}

void loop() {
  // put your main code here, to run repeatedly:
Serial.println("Hello Arduino Uno");
delay(1000);
Serial.println("I like to chase skunks");
delay(2000);
Serial.println("I was almost attacked by 8 of them");
delay(3000);

digitalWrite(LED_red, LOW);
digitalWrite(LED_yellow, LOW);
digitalWrite(LED_green, HIGH);
delay(500);
digitalWrite(LED_red, HIGH);
digitalWrite(LED_yellow, LOW);
digitalWrite(LED_green, LOW);
delay(1000);
digitalWrite(LED_red, LOW);
digitalWrite(LED_yellow, HIGH);
digitalWrite(LED_green, LOW);
delay(2000);
}