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: [90, -22.644, -91, -97, -64, -51, 80, -59.246, 33, 64, -72.056]

SOLUTION: [90, -91, -97, -64, -51, 80, 33, 64]

PROBLEM: [21, 7.387, 58, -3.393, 17.91, -81, 93, -100, 1.119]

SOLUTION: [21, 58, -81, 93, -100]

PROBLEM: [-11.972, 36.906, 20, -16.978, 15.271]

SOLUTION:
[20]