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 man skateboards in a park for skateboarding'. Reverse all words of length '2' in the given sentence.

Ex Output:
a man skateboards ni a park for skateboarding


Ex Input:
Sentence: 'a clock tower with a weather vein that is lit up'. Reverse all words of length '7' in the given sentence.

Ex Output:
a clock tower with a rehtaew vein that is lit up


Ex Input:
Sentence: 'a herd of elephant in tall grass near trees'. Reverse all words of length '8' in the given sentence.

Ex Output:

a herd of tnahpele in tall grass near trees