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: [-49.392, -34, -7, 81, -5.452, 20.332, 51.597, 42.557, 88.462]

[-34, -7, 81]