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: [-49, -78.26, -21, 46, -45.532, 6.357, -35.449, -47.693, -35.293, -44.647, 18]

[-49, -21, 46, 18]