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 people flying kites in front of the white house in washington dc'. Reverse all words of length '4' in the given sentence.

Ex Output:
ynam people flying kites in front of the white house in washington dc


Ex Input:
Sentence: 'a man standing next to a parked car under a street sign'. Reverse all words of length '6' in the given sentence.

Ex Output:
a man standing next to a dekrap car under a teerts sign


Ex Input:
Sentence: 'a man with a backpack and large american flag stands atop skis on a snowy mountain slope'. Reverse all words of length '5' in the given sentence.

Ex Output:

a man with a backpack and egral american flag stands atop skis on a ywons mountain epols