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 group of people eating a cake on a table'. Reverse all words of length '6' in the given sentence.

Output: a group of elpoep gnitae a cake on a table


Input: Consider Input: Sentence: 'a pair of melted scissors on top of a reflective surface'. Reverse all words of length '7' in the given sentence.

Output: a pair of melted scissors on top of a reflective ecafrus


Input: Consider Input: Sentence: 'a green trolley car is passing the station'. Reverse all words of length '7' in the given sentence.


Output: a green yellort car is gnissap the noitats