句子逆序list.reverse() .join()/for

while True:
    try:
        words=list((input().split(' ')))
        #print(type(words),words)
        words.reverse()
        #print(words)
        for word in words:
            print(word,end=' ')
        print()
        #print(' '.join(words)) 直接用join()更简洁
    except:
        break