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: [3.497, -20.131, -23.737, 20.336, -87, 5.656, -20.25, -27.96, -77.23]

[-87]