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 dog lays next to a bag on a couch'. Reverse all words of length '4' in the given sentence.

Output: a dog syal txen to a bag on a couch


Input: Consider Input: Sentence: 'two baseball players with long hair and beards are posing with a smile'. Reverse all words of length '1' in the given sentence.

Output: two baseball players with long hair and beards are posing with a smile


Input: Consider Input: Sentence: 'a man walking in the shore with a surfboard under his arm'. Reverse all words of length '3' in the given sentence.


Output: a nam walking in eht shore with a surfboard under sih mra