Given a string A.

Return the string A after reversing the string word by word.

NOTE:

  1. A sequence of non-space characters constitutes a word.

  2. Your reversed string should not contain leading or trailing spaces, even if it is present in the input string.

  3. If there are multiple spaces between words, reduce them to a single space in the reversed string.



Input Format

The only argument given is string A.

Output Format

Return the string A after reversing the string word by word.

For Example

Input 1:
    A = "the sky is blue"
Output 1:
    "blue is sky the"

Input 2:
    A = "this is ib"
Output 2:
    "ib is this"
NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a doubt? Checkout Sample Codes for more details.
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