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 couple of women sitting on a bench with a dog'. Reverse all words of length '4' in the given sentence.

Ex Output:
a couple of women sitting on a bench htiw a dog


Ex Input:
Sentence: 'a person siting on the ground and decorating a parking meter'. Reverse all words of length '5' in the given sentence.

Ex Output:
a person siting on the ground and decorating a parking retem


Ex Input:
Sentence: 'a double decker bus stopped on a street'. Reverse all words of length '7' in the given sentence.

Ex Output:

a double decker bus deppots on a street