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 skateboarder in mid air during a trick'. Reverse all words of length '6' in the given sentence.

Ex Output:
a skateboarder in mid air gnirud a trick


Ex Input:
Sentence: 'a male cow walking down a street with shanties'. Reverse all words of length '7' in the given sentence.

Ex Output:
a male cow gniklaw down a street with shanties


Ex Input:
Sentence: 'a row of skiers skiing on a course'. Reverse all words of length '2' in the given sentence.

Ex Output:

a row fo skiers skiing no a course