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 plate with a very big pile of cake with candles'. Reverse all words of length '4' in the given sentence.

Ex Output:
a plate htiw a yrev big elip of ekac htiw candles


Ex Input:
Sentence: 'a train platform at a train stop with brick style flooring'. Reverse all words of length '2' in the given sentence.

Ex Output:
a train platform ta a train stop with brick style flooring


Ex Input:
Sentence: 'several people sitting in a room in groups'. Reverse all words of length '1' in the given sentence.

Ex Output:

several people sitting in a room in groups