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 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


Input: Consider Input: Sentence: 'a man is standing on a sidewalk with his bike'. Reverse all words of length '3' in the given sentence.

Output: a nam is standing on a sidewalk with sih bike


Input: Consider Input: Sentence: 'a group of people are sitting down in a large field'. Reverse all words of length '3' in the given sentence.


Output: a group of people era sitting down in a large field