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: [53.852, 32, -15.897, -12.898, 43, -23, -36.636, 7.57, 91]

[32, 43, -23, 91]