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.
Input: [17, -30, 23, 84, -7, -90, 73, 75, 42, 57, 39]

[34, 90, 46, 168, 21, 270, 146, 150, 84, 114, 78]