const int buttonPin = 3;
int buttonState = 0;
int lastButtonState = 0;
bool ledsState = false;
void setup() {
  pinMode(0, OUTPUT);
  pinMode(1, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP);
}

void loop() {
  a();
  b();
}
void a() {
  digitalWrite(13, HIGH);
  digitalWrite(9, HIGH);
  digitalWrite(0, HIGH);
}
void b() {
  delay(1500);
  buttonState = digitalRead(buttonPin);
  if (buttonState != lastButtonState) {
    if (buttonState == LOW) {
      ledsState = !ledsState;
      if (ledsState) {
        digitalWrite(11, LOW);
        digitalWrite(10, LOW);
        digitalWrite(9, HIGH);
        digitalWrite(12, HIGH);
        digitalWrite(13, LOW);
        delay(3000);
        digitalWrite(12, LOW);
        digitalWrite(13, HIGH);
        digitalWrite(9, HIGH);
        delay(1000);
      }
    }
  }
  lastButtonState = buttonState;
  digitalWrite(9, LOW);
  digitalWrite(10, HIGH);
  delay(1500);
  digitalWrite(10, LOW);
  digitalWrite(11, HIGH);
  delay(3000);
  digitalWrite(11, LOW);
  digitalWrite(10, HIGH);
  delay(1500);
  digitalWrite(10, LOW);
  digitalWrite(9, HIGH);
  delay(1500);

  buttonState = digitalRead(buttonPin);
  if (buttonState != lastButtonState) {
    if (buttonState == LOW) {
      ledsState = !ledsState;
      if (ledsState) {
        digitalWrite(2, LOW);
        digitalWrite(1, LOW);
        digitalWrite(0, HIGH);
        digitalWrite(12, HIGH);
        digitalWrite(13, LOW);
        delay(3000);
        digitalWrite(12, LOW);
        digitalWrite(13, HIGH);
      }
    }
  }
  lastButtonState = buttonState;
  digitalWrite(0, LOW);
  digitalWrite(1, HIGH);
  delay(1500);
  digitalWrite(1, LOW);
  digitalWrite(2, HIGH);
  delay(3000);
  digitalWrite(2, LOW);
  digitalWrite(1, HIGH);
  delay(1500);
  digitalWrite(1, LOW);
  digitalWrite(0, HIGH);
  delay(800);
}