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 large flock of birds fly through the sky'. Reverse all words of length '3' in the given sentence.

Ex Output:
a large flock of birds ylf through eht yks


Ex Input:
Sentence: 'view of a stove next to a stainless kitchen sink under a window'. Reverse all words of length '7' in the given sentence.

Ex Output:
view of a stove next to a stainless nehctik sink under a window


Ex Input:
Sentence: 'a child smiling and skiing in the snow'. Reverse all words of length '1' in the given sentence.

Ex Output:

a child smiling and skiing in the snow