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: 'the skier is doing a flip high in the air near gondala wires'. Reverse all words of length '3' in the given sentence.

Ex Output:
eht skier is doing a flip high in eht ria near gondala wires


Ex Input:
Sentence: 'a couple walking in the rain using and umbrella'. Reverse all words of length '6' in the given sentence.

Ex Output:
a elpuoc walking in the rain using and umbrella


Ex Input:
Sentence: 'a white clock on a post and a tree and some buildings'. Reverse all words of length '3' in the given sentence.

Ex Output:

a white clock on a post dna a tree dna some buildings