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 bus with a colorful design  on the bottom half'. Reverse all words of length '8' in the given sentence.

Ex Output:
a bus with a lufroloc design on the bottom half


Ex Input:
Sentence: 'a young man is sitting on the side of a bus eating a hot dog'. Reverse all words of length '3' in the given sentence.

Ex Output:
a young nam is sitting on eht side of a sub eating a toh god


Ex Input:
Sentence: 'there are four giraffes standing a sandy field'. Reverse all words of length '8' in the given sentence.

Ex Output:

there are four seffarig gnidnats a sandy field