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 fire hydrant placed in the street just off the curb'. Reverse all words of length '3' in the given sentence.

Output: a fire hydrant placed in eht street just ffo eht curb


Input: Consider Input: Sentence: 'a couple of beds pushed together inside of a hospital'. Reverse all words of length '6' in the given sentence.

Output: a elpuoc of beds dehsup together edisni of a hospital


Input: Consider Input: Sentence: 'sheep are running across a green field of grass'. Reverse all words of length '7' in the given sentence.


Output: sheep are gninnur across a green field of grass