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: [-18, 9]

SOLUTION: [54, 18]

PROBLEM: [4, -50, 84, -29, 48, 73, 18, 60]

SOLUTION: [8, 150, 168, 87, 96, 146, 36, 120]

PROBLEM: [38, -31, -1, 29]

SOLUTION:
[76, 93, 3, 58]