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 decorative umbrella and various other items on display'. Reverse all words of length '5' in the given sentence.

Ex Output:
a decorative umbrella and various rehto smeti on display


Ex Input:
Sentence: 'there is a large black bear that is siting on a rock'. Reverse all words of length '5' in the given sentence.

Ex Output:
ereht is a egral kcalb bear that is siting on a rock


Ex Input:
Sentence: 'a city bus has its running lights on at dusk'. Reverse all words of length '3' in the given sentence.

Ex Output:

a city sub sah sti running lights on at dusk