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 black cat sitting on top of a laptop on a table'. Reverse all words of length '5' in the given sentence.

Output: a kcalb cat sitting on top of a laptop on a elbat


Input: Consider Input: Sentence: 'a man watches two giraffes eating from a box'. Reverse all words of length '4' in the given sentence.

Output: a man watches two giraffes eating morf a box


Input: Consider Input: Sentence: 'a flatbread sandwich with a salad behind it'. Reverse all words of length '4' in the given sentence.


Output: a flatbread sandwich htiw a salad behind it