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 red and white jet is taking off and some buildings'. Reverse all words of length '2' in the given sentence.

Ex Output:
a red and white jet si taking off and some buildings


Ex Input:
Sentence: 'a couple of giraffes standing in front of a metal fence'. Reverse all words of length '8' in the given sentence.

Ex Output:
a couple of seffarig gnidnats in front of a metal fence


Ex Input:
Sentence: 'two girls standing in front of a metal fence'. Reverse all words of length '3' in the given sentence.

Ex Output:

owt girls standing in front of a metal fence