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]

[69.15, 61, 5, 7.878, -55, -79, -46.564, -0.008, 66, -49, -45.117]
[61, 5, -55, -79, 66, -49]

[2.115, -6.497, -31, -58, -3.022, 5.231, 27.216, 36]

[-31, -58, 36]