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: [-21, -19, -78, 15, -8, -39, -1, 48]

SOLUTION: [63, 57, 234, 30, 24, 117, 3, 96]

PROBLEM: [-56, 7]

SOLUTION: [168, 14]

PROBLEM: [-6, 38, 72]

SOLUTION:
[18, 76, 144]