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, -35, 29, 57, 86, 40, -12, -14, 67, -73, 21]

[174, 105, 58, 114, 172, 80, 36, 42, 134, 219, 42]