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.

Input: Consider Input: Sentence: 'a man with a backpack waiting at a train station'. Remove all words of length '7' in the given sentence.

Output: a man with a backpack at a train


Input: Consider Input: Sentence: 'two gentleman playing video games in the living room'. Remove all words of length '4' in the given sentence.

Output: two gentleman playing video games in the living


Input: Consider Input: Sentence: 'a person eats a doughnut in the front of a store'. Remove all words of length '6' in the given sentence.


Output: a eats a doughnut in the front of a store