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.

Ex Input:
Sentence: 'a person parasails in water with mountains in the background'. Reverse all words of length '4' in the given sentence.

Ex Output:
a person parasails in water htiw mountains in the background


Ex Input:
Sentence: 'a cat attentively watching a graphic on a television screen'. Reverse all words of length '7' in the given sentence.

Ex Output:
a cat attentively watching a cihparg on a television screen


Ex Input:
Sentence: 'four people sitting in a auditorium style class with open mac laptops'. Reverse all words of length '5' in the given sentence.

Ex Output:

four people sitting in a auditorium elyts ssalc with open mac laptops