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 skier is flying through the air while people watch'. Reverse all words of length '7' in the given sentence.

Ex Output:
a skier is flying hguorht the air while people watch


Ex Input:
Sentence: 'an aerial view of a small bathroom stall'. Reverse all words of length '8' in the given sentence.

Ex Output:
an aerial view of a small moorhtab stall


Ex Input:
Sentence: 'a person stands out amongst a black and white background'. Reverse all words of length '3' in the given sentence.

Ex Output:

a person stands tuo amongst a black dna white background