Validierung von Kreditkartennummern
python
import re
def check(card):
if not re.search("^[456]\d{3}(-?\d{4}){3}$",card) or re.search(r"(\d)\1{3}", re.sub("-", "",card)):
return False
return True
for i in range(int(input())):
print("Valid" if check(input()) else "Invalid")
vip_codes