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: [-42, -42, 19, -19, 57, 18, -7, -91, -50]

[126, 126, 38, 57, 114, 36, 21, 273, 150]