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: [47, -100, 58, 81, -83, 35, -53, -78, 51, -26, 21]

[94, 300, 116, 162, 249, 70, 159, 234, 102, 78, 42]