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: 'three zebras are standing on a grassy field'. Reverse all words of length '1' in the given sentence.

Output: three zebras are standing on a grassy field


Input: Consider Input: Sentence: 'group of antelopes and deer standing outside in a savannah'. Reverse all words of length '9' in the given sentence.

Output: group of sepoletna and deer standing outside in a savannah


Input: Consider Input: Sentence: 'a train driving down the tracks near trees and a building'. Reverse all words of length '1' in the given sentence.


Output: a train driving down the tracks near trees and a building