In this task, you need to reverse all words of a given length in the sentence. The number of letters in a word determine its length. For example, the length of the word "apple" is 5.

Input: Consider Input: Sentence: 'a gentleman and child in a vintage picture with a horse'. Reverse all words of length '4' in the given sentence.

Output: a gentleman and child in a vintage picture htiw a horse


Input: Consider Input: Sentence: 'a skier is flying through the air while people watch'. Reverse all words of length '7' in the given sentence.

Output: a skier is flying hguorht the air while people watch


Input: Consider Input: Sentence: 'a little boy is standing on a refrigerator shelf'. Reverse all words of length '2' in the given sentence.


Output: a little boy si standing no a refrigerator shelf