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 tall clock tower with a sky background'. Reverse all words of length '10' in the given sentence.

Ex Output:
a tall clock tower with a sky dnuorgkcab


Ex Input:
Sentence: 'the double decker bus is headed for its destination'. Reverse all words of length '2' in the given sentence.

Ex Output:
the double decker bus si headed for its destination


Ex Input:
Sentence: 'an old man wearing leather pants and a leather vest'. Reverse all words of length '7' in the given sentence.

Ex Output:

an old man gniraew rehtael pants and a rehtael vest