#!/usr/bin/env python3
# -*- coding: utf-8 -*-

plzarr = ["68","69","70","71","72","73","74","75","76","77","78","79","88","89"]

plz = input("Bitte Postleitzahl eingeben ")
plzfirstdigits = plz[0:2]
print(plzfirstdigits), print(plzarr)
ispresent = plzfirstdigits in plzarr
print(ispresent)