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 group of people loading a tour bus'. Reverse all words of length '3' in the given sentence.

Ex Output:
a group of people loading a tour sub


Ex Input:
Sentence: 'a small child having his teeth brushed by an adult'. Reverse all words of length '7' in the given sentence.

Ex Output:
a small child having his teeth dehsurb by an adult


Ex Input:
Sentence: 'a cat is sitting near an orange wall and orange planter'. Reverse all words of length '7' in the given sentence.

Ex Output:

a cat is gnittis near an orange wall and orange retnalp