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: [18.56, -36, 0.595, 71, 6.843, -71, 7.479, -8, -0.709, 34.216, 15]

[-36, 71, -71, -8, 15]