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

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


Ex Input:
Sentence: 'a salt and pepper shaker near a plate with food'. Reverse all words of length '3' in the given sentence.

Ex Output:
a salt dna pepper shaker near a plate with food


Ex Input:
Sentence: 'a person is skiing while looking at the camera'. Reverse all words of length '5' in the given sentence.

Ex Output:

a person is skiing elihw looking at the camera