TASK DEFINITION: In this task you will be given a list of integers. For every element in the list, if the element is positive you should multiply it by 2.  If the element is negative you should multiply it by -3. The output should be a list of integers that is the result of applying that logic to the input list.
 Note: A list is presented with comma separated numbers inside two brackets.
PROBLEM: [84, 84, -79, 23, 36, -52, -56, 17, 6, -8, -21]

SOLUTION: [168, 168, 237, 46, 72, 156, 168, 34, 12, 24, 63]

PROBLEM: [-73, 95, -100, 41, -57, 80, -68, -90, -4, 78, 75]

SOLUTION: [219, 190, 300, 82, 171, 160, 204, 270, 12, 156, 150]

PROBLEM: [-82, 19, -28, -90]

SOLUTION:
[246, 38, 84, 270]