#
# 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
#
# 
# @param str string字符串 
# @return string字符串
#
class Solution:
    def ReverseSentence(self , str: str) -> str:
        # write code here
        str_list = str.split(' ')
        str_list.reverse()
        res =''
        for x in str_list:
            res = res + x + ' '
        return res[:-1]