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, -83, 3.104, 47, -87, 43, -28, 16.643, -88, -61.419, 21.078]

[-56, -83, 47, -87, 43, -28, -88]