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 sign explain the meaning of the road work'. Reverse all words of length '7' in the given sentence.

Output: a sign nialpxe the gninaem of the road work


Input: Consider Input: Sentence: 'a very small shiny metal cup with some food in it'. Reverse all words of length '4' in the given sentence.

Output: a yrev small shiny metal cup htiw emos doof in it


Input: Consider Input: Sentence: 'a crowd of people skiing and enjoying the snow'. Reverse all words of length '4' in the given sentence.


Output: a crowd of people skiing and enjoying the wons