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: 'many pairs of open scissors sit on top of metal poles'. Reverse all words of length '4' in the given sentence.

Ex Output:
ynam pairs of nepo scissors sit on top of metal poles


Ex Input:
Sentence: 'computer with an extra monitor with bright green screens'. Reverse all words of length '2' in the given sentence.

Ex Output:
computer with na extra monitor with bright green screens


Ex Input:
Sentence: 'a young girl who is on a couch holding a teddy bear'. Reverse all words of length '7' in the given sentence.

Ex Output:

a young girl who is on a couch gnidloh a teddy bear