int red1 = 12;
int red2 = 11;
int red3 = 10;
int green1 = 9;
int buzzer1 = 8; 

void setup() {
  // put your setup code here, to run once:
pinMode(red1, OUTPUT);
pinMode(red2, OUTPUT);
pinMode(red3, OUTPUT);
pinMode(green1, OUTPUT);
pinMode(buzzer1, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(red1, HIGH);
delay(500);
digitalWrite(red2, HIGH);
delay(500);
digitalWrite(red3, HIGH);
delay(500);
digitalWrite(green1,HIGH);
delay(500);
digitalWrite(buzzer1, HIGH);
delay(500);
digitalWrite(red1, LOW);
delay(500);
digitalWrite(red2, LOW);
delay(500);
digitalWrite(red3, LOW);
delay(500);
digitalWrite(green1, LOW);
delay(500);
digitalWrite(buzzer1, LOW);
delay(500);
}