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: [18, 13, 0.98, 31, -6.555, 4.21, -86, -63.545]

[18, 13, 31, -86]