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 very nice looking train in the dark'. Remove all words of length '7' in the given sentence.

Output: a very nice train in the dark


Input: Consider Input: Sentence: 'an elephant eating a tree branch in a bare field'. Remove all words of length '2' in the given sentence.

Output: elephant eating a tree branch a bare field


Input: Consider Input: Sentence: 'the span bridge covers a very wide expanse'. Remove all words of length '7' in the given sentence.


Output: the span bridge covers a very wide