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: 'three people are sitting in the room playing video games'. Reverse all words of length '2' in the given sentence.

Ex Output:
three people are sitting ni the room playing video games


Ex Input:
Sentence: 'a few people that are walking down the street with some umbrellas'. Reverse all words of length '3' in the given sentence.

Ex Output:

a wef people that era walking down eht street with some umbrellas