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 at a zoo looking over the fence of a giraffe enclosure'. Reverse all words of length '6' in the given sentence.

Ex Output:
a nosrep at a zoo looking over the fence of a giraffe enclosure


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: 'a fire hydrant placed in the street just off the curb'. Reverse all words of length '3' in the given sentence.

Ex Output:

a fire hydrant placed in eht street just ffo eht curb