int B = 9;
int L = 8;
int ledState = LOW;
int lastButtonState = LOW;
int buttonState;
int l123;
int z;

void setup() {
  pinMode(L, OUTPUT);
  pinMode(B, INPUT);
  Serial.begin(9600);
  l123 = 0;
}

void loop() {
  buttonState = digitalRead(B);

  if (buttonState == HIGH && lastButtonState == LOW) {
    l123++;

    if (l123 == 1 || l123 == 2) {  // DAs ding ist einfacher kompakter anstatt 2 if zu machen einfach 1 if Code optimierung
      ledState = !ledState;
      digitalWrite(L, ledState);
    }

    if (l123 == 3) {
      z = 0;
      while (z < 1000) {
        delay(50);
        if (digitalRead(B) == HIGH) {
          break;
        }
      digitalWrite(L, HIGH);
      delay(100);
      digitalWrite(L, LOW);
      delay(100);
      z++;

      }
    }
  }

if (l123 >= 4)
{
  l123 = 0;
}

lastButtonState = buttonState;
Serial.println(l123);
Serial.println(z);

delay(50);
}