# Author: Scott Wehrwein
# Date: 2/22/23
# L15 P2

word = input("Enter a word: ").lower()

entered = []

while word != "exit":
    # do something with word
    if word in entered:
        print("Duplicate")
    else:
        print("Not a duplicate")
        entered.append(word)
    
    
    word = input("Enter a word: ").lower()

