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: [-21.647, 67, 12.644, -0.728, 12.755, 37.507, 17.358, 69, -25.289]

[67, 69]