String name;



void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
Serial.println("Name;Geburtsjahr;");
while(!Serial.available()) {}
name = Serial.readStringUntil(';');
int jahr  = Serial.readStringUntil(';').toInt();

Serial.println("Hallo " + name + " du bist etwa " + (2023-jahr) + " Jahre alt.");


name.trim();
}