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 photo looking up at a clock in a subway station'. Remove all words of length '5' in the given sentence.

Ex Output:
a looking up at a in a subway station


Ex Input:
Sentence: 'a large brick building with a tree in front'. Remove all words of length '4' in the given sentence.

Ex Output:
a large brick building a in front


Ex Input:
Sentence: 'military officials are cutting a cake at a celebratory party'. Remove all words of length '7' in the given sentence.

Ex Output:

military officials are a cake at a celebratory party