Definition: In this task you will be given a list of numbers. You should remove any number that is not an integer (whole number). If every number is not an whole number then an empty list ("[]") should be returned. Otherwise, answer with the list of whole numbers separated by comma inside brackets.
Input: [-56.381, 11.809, 42, -99, -57, -47.693, -42, -27.357, 8.493]

[42, -99, -57, -42]