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: [-81, -1.701, -13, 34.131, 74, 56, 71.646, -1.313, 9]

[-81, -13, 74, 56, 9]