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.

[-11.466, -21, 20.328, 20.846, 4.645, -23.691, -1.658, -2.996, -15]
[-21, -15]

[-50.449, -14.121, 91, -90, 52.614, 14, -39.144, -17.229, -68, -100]
[91, -90, 14, -68, -100]

[-28.256, -7.811, -32.842, -28, 37, -28, -98, 58.612, -26.712, -1.334]

[-28, 37, -28, -98]