Python Help

I have to write some code for uni, unfortunately i dont aktually know, what to do... I wrote the firt part of code, but idk how to write the next part. (Look at the pic for the constructions) the part i wrote: worter= {"0": "null", "1": "eins", "2": "zwei", "3": "drei", "4": "vier", "5": "fünf", "6": "sechs", "7": "sieben", "8": "acht", "9": "neun", "10": "zehn" } zahl= input("Bitte geben sie eine positive Zahl ein: ") print(zahl)