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 red pair of scissors on top of an envelope'. Reverse all words of length '2' in the given sentence.

Output: a red pair fo scissors no top fo na envelope


Input: Consider Input: Sentence: 'a table with different dishes of food on it'. Reverse all words of length '4' in the given sentence.

Output: a table htiw different dishes of doof on it


Input: Consider Input: Sentence: 'man riding a wave on top of a surfboard on a sunny day'. Reverse all words of length '4' in the given sentence.


Output: man riding a evaw on top of a surfboard on a sunny day