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 man in a blue shirt is playing tennis'. Reverse all words of length '3' in the given sentence.

Ex Output:
a nam in a blue shirt is playing tennis


Ex Input:
Sentence: 'a grey cat with green eyes looking straight ahead'. Reverse all words of length '1' in the given sentence.

Ex Output:
a grey cat with green eyes looking straight ahead


Ex Input:
Sentence: 'people watching a music concert being performed on a stage'. Reverse all words of length '5' in the given sentence.

Ex Output:

people watching a cisum concert gnieb performed on a egats