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: 'someone is sitting on a elephant and messing with the seat'. Reverse all words of length '7' in the given sentence.

Ex Output:
enoemos is gnittis on a elephant and gnissem with the seat


Ex Input:
Sentence: 'a traffic light with road instructions directs traffic'. Reverse all words of length '4' in the given sentence.

Ex Output:
a traffic light htiw daor instructions directs traffic


Ex Input:
Sentence: 'a man putting together a kite on the floor of a room'. Reverse all words of length '4' in the given sentence.

Ex Output:

a man putting together a etik on the floor of a moor