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: [1.168, -60, 5.202, -17.297, -45.036, -6.978, 21.87, 9.804, -4.388]

[-60]