题解 | #单词倒排#

# 将输入字符串按照空格分隔字符串

chars = input().split()

# print(chars)    # ['$bo*y', 'gi!r#l']

# 处理特殊字符串获取新的字符串
new_chars = []
for char in chars:
    new_char = ''
    # 处理特殊字符
    for s in char:
        if not s.isalpha():
            new_char +=' '
        else:
            new_char +=s

    new_chars.append(new_char)

# print(new_chars)    # [' bo y', 'gi r l']

# 迭代新的字符串，按照要求的格式打印输出
for new_char in new_chars[::-1]:
    for ch in new_char.split()[::-1]:
        print(ch,end=' ')