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 green apple and knife on dark wooden stairs'. Reverse all words of length '3' in the given sentence.

Output: a green apple dna knife on dark wooden stairs


Input: Consider Input: Sentence: 'young skateboarder on paved roadway near grassy slope'. Reverse all words of length '6' in the given sentence.

Output: young skateboarder on paved roadway near yssarg slope


Input: Consider Input: Sentence: 'a couple of elephants that are standing in the water'. Reverse all words of length '9' in the given sentence.


Output: a couple of stnahpele that are standing in the water