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.

Input: Consider Input: Sentence: 'a couple of toothbrushes that are on a towel'. Reverse all words of length '6' in the given sentence.

Output: a elpuoc of toothbrushes that are on a towel


Input: Consider Input: Sentence: 'a happy white man with sunglasses on a boat'. Reverse all words of length '1' in the given sentence.

Output: a happy white man with sunglasses on a boat


Input: Consider Input: Sentence: 'a man kneeling in the grass next to an animal'. Reverse all words of length '1' in the given sentence.


Output: a man kneeling in the grass next to an animal