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.

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

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


Ex Input:
Sentence: 'a computer and laptop sitting on a desk'. Reverse all words of length '6' in the given sentence.

Ex Output:
a computer and potpal sitting on a desk


Ex Input:
Sentence: 'a turquoise an silver bus parked in front a building'. Reverse all words of length '2' in the given sentence.

Ex Output:

a turquoise na silver bus parked ni front a building