Sentinel Not working, HELP!

Question

I need to append a name and a score, and have it print both and keep collecting the information until sentinel is entered but the sentinel is not working.

Names = []
Score = []
Index = 0
Max = 0
size = 0

def showList():
print(Names,Score)

while Names != 0:

n = input("Enter players name: (Enter XXX to end) ")
Names.append(n)
s = input("Enter score: ")
Score.append(s)

print(Names)
print(Score)
if Names == 0:
break

showList

Answer 1

A sentinel loop continues to process data until reaching a special value that signals the end. The special value is called the sentinel

Answer 2

Yes

Answer 3

but its not working

Answer 4

Thank you