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 vase with purple sand and flowers inside'. Reverse all words of length '4' in the given sentence.

Ex Output:
a esav htiw purple dnas and flowers inside


Ex Input:
Sentence: 'an old chair with telephone books on it in a room with guitars and a tv'. Reverse all words of length '7' in the given sentence.

Ex Output:
an old chair with telephone books on it in a room with sratiug and a tv


Ex Input:
Sentence: 'a couple of men standing on a lush green park playing a game of frisbee'. Reverse all words of length '5' in the given sentence.

Ex Output:

a couple of men standing on a lush neerg park playing a game of frisbee