def findWords() :
    concordance = []
    print("Type your sentence, one word per line")
    word = None
    while True :
        word = input(": ")
        if word == "QUIT" :
            break
        if not word in concordance :
            concordance.append(word)
    print("There were", len(concordance), "distinct words")
    for word in concordance :
        print(word,",", sep='', end='')
    print()

    
def findWords2() :
    concordance = []
    line = input("Type your sentence: ")
    words = line.split()
    for word in words :
        if not word in concordance :
            concordance.append(word)
    print("There were", len(concordance), "distinct words")
    for word in concordance :
        print(word,",", sep='', end='')
    print()

findWords()
print("------------")
findWords2()