Reverse the Words in a Sentence

Given an input string representing a sentence, your task is to reverse the order of the words. A word is defined as a sequence of non-space characters, and words in the input are separated by one or more spaces. Extra spaces should be ignored in the final output, and the returned result must have a single space between words.

For example, if the input is "python is amazing", then the output should be "amazing is python".

Please note:

• The input might contain leading or trailing spaces, or even multiple spaces between words.
• An empty input string should return an empty output string.

inputFormat

The input is provided via standard input (stdin) as a single line containing the sentence.

outputFormat

Output the sentence with the word order reversed. The words should be separated by a single space, and no extra spaces should appear at the beginning or end of the output.

hello

hello