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: [-87, -38, 9, 79, -3, 91, 86, 60, -21]

[261, 114, 18, 158, 9, 182, 172, 120, 63]