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.

Input: Consider Input: Sentence: 'the dog looks up at the cat sitting on a stone'. Reverse all words of length '1' in the given sentence.

Output: the dog looks up at the cat sitting on a stone


Input: Consider Input: Sentence: 'a triangular grouping of jet planes flying in the sky'. Reverse all words of length '3' in the given sentence.

Output: a triangular grouping of tej planes flying in eht yks


Input: Consider Input: Sentence: 'a pizza that is sitting on a metal tray'. Reverse all words of length '7' in the given sentence.


Output: a pizza that is gnittis on a metal tray