Bike Lights

void setup(){
  pinMode(2, OUTPUT); //left signal
  pinMode(3, OUTPUT); //brakes
  pinMode(4, OUTPUT); //right signal
  pinMode(5, INPUT_PULLUP); //right signal switch
  pinMode(6, INPUT_PULLUP); //left signal switch
  pinMode(7, INPUT_PULLUP); //head lamp switch
  pinMode(8, INPUT_PULLUP); //brake switch
  pinMode(9, OUTPUT); //head lamp
}
 void loop(){
  int rightVal = digitalRead(5);
  int leftVal = digitalRead(6);
  int headVal = digitalRead(7);
  int brakeVal = digitalRead(8);
  if (leftVal == LOW) {digitalWrite(2, HIGH);}
  else {digitalWrite(2, LOW);}
  if (rightVal == LOW) {digitalWrite(4, HIGH);}
  else {digitalWrite(4, LOW);}
  if (brakeVal == HIGH) {digitalWrite(3, HIGH);}
  else {digitalWrite(3, LOW);}
  if (headVal == LOW) {digitalWrite(9, HIGH);}
  else {digitalWrite(9, LOW);}
  delay(500);
  digitalWrite(2, LOW);
  digitalWrite(4, LOW);
  delay(500);
}