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: 'two men are playing a wii boxing game'. Reverse all words of length '4' in the given sentence.

Ex Output:
two men are playing a wii boxing emag


Ex Input:
Sentence: 'a passenger train moves along tracks near a field and trees'. Reverse all words of length '1' in the given sentence.

Ex Output:
a passenger train moves along tracks near a field and trees


Ex Input:
Sentence: 'a big round bed with something black on it'. Reverse all words of length '2' in the given sentence.

Ex Output:

a big round bed with something black no ti