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 row of park benches sitting next to a park'. Remove all words of length '7' in the given sentence.

Output: a row of park next to a park


Input: Consider Input: Sentence: 'a white bus passing by a stone building'. Remove all words of length '3' in the given sentence.

Output: a white passing by a stone building


Input: Consider Input: Sentence: 'the hill almost seems to be impossible to ski on'. Remove all words of length '5' in the given sentence.


Output: the hill almost to be impossible to ski on