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: 'two young boys standing on grass near a fence'. Reverse all words of length '8' in the given sentence.

Output: two young boys gnidnats on grass near a fence


Input: Consider Input: Sentence: 'a person in bear feet standing on a skateboard'. Reverse all words of length '4' in the given sentence.

Output: a person in raeb teef standing on a skateboard


Input: Consider Input: Sentence: 'a person holding a small remote key chain'. Reverse all words of length '7' in the given sentence.


Output: a person gnidloh a small remote key chain