Reverse the Order of Words

You are given a string s containing words separated by spaces. Your task is to reverse the order of the words while keeping the characters within each word in their original order.

For example, if s = "hello world", then the output should be "world hello".

Note: When splitting the string, consider any sequence of whitespace characters as a delimiter. Extra spaces should be ignored.

In mathematical notation, if we denote the positions of the words as \(w_1, w_2, \dots, w_n\), the output should be \(w_n, w_{n-1}, \dots, w_1\).

inputFormat

The input is given from standard input (stdin) as a single line containing the string s.

outputFormat

Output the modified string with the order of words reversed, using standard output (stdout).

hello world

world hello