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: [-21, 21, 18, -10, 2, 77, -75, 37, -68, 4]

[63, 42, 36, 30, 4, 154, 225, 74, 204, 8]