In this task, you need to remove 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 stack of donuts sitting on a piece of paper'. Remove all words of length '7' in the given sentence.

Ex Output:
a stack of donuts on a piece of paper


Ex Input:
Sentence: 'a young lady is holding on to a street sign and smiling'. Remove all words of length '3' in the given sentence.

Ex Output:
a young lady is holding on to a street sign smiling


Ex Input:
Sentence: 'black cat laying down on top of the television while its still on'. Remove all words of length '6' in the given sentence.

Ex Output:

black cat down on top of the television while its still on