题解 | 单词倒排

import re
def re_word(n):
    sig_word = re.split(r'[^a-zA-Z]+', n)
    # words = re.split(r'[^a-zA-Z]+', text)
    final_word = []
    x =len(sig_word)
    for i in range(x-1):
        final_word.append(sig_word[x-i-1])

    return " ".join(final_word)
n = input().strip()
print(re_word(n))