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 heard of black cows standing and looking at the camera'. Remove all words of length '2' in the given sentence.

Ex Output:
a heard black cows standing and looking the camera


Ex Input:
Sentence: 'a person is walking down the beach holding a surfboard'. Remove all words of length '3' in the given sentence.

Ex Output:
a person is walking down beach holding a surfboard


Ex Input:
Sentence: 'a small locomotive sits on track beside railway freight cars'. Remove all words of length '6' in the given sentence.

Ex Output:

a small locomotive sits on track railway freight cars