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: 'a vase with purple sand and flowers inside'. Reverse all words of length '4' in the given sentence.

Output: a esav htiw purple dnas and flowers inside


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 snowy hill with a tree lined area'. Reverse all words of length '4' in the given sentence.


Output: a snowy llih htiw a eert lined aera