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: [7.603, 14.517, 3.871, 43, -17.467, 5.094, -21.372, 55, 89, -1.888, -63]

[43, 55, 89, -63]