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: [88, -10.802, -43.942, 34.193, -1, 1.011, -21, 81, 97, 4]

[88, -1, -21, 81, 97, 4]