TASK 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.
PROBLEM: [20.739, -1.82, 29, 23, -3.421, -29.422, 5.193, 7.863, -42]

SOLUTION: [29, 23, -42]

PROBLEM: [-77, -21.223, 28.614]

SOLUTION: [-77]

PROBLEM: [-31, 40, -43, 80]

SOLUTION:
[-31, 40, -43, 80]