TASK 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.
PROBLEM: [-51, -18, -13]

SOLUTION: [153, 54, 39]

PROBLEM: [37, -66, 87, 23, -5, 67, 46, 97, 0, 98, 77]

SOLUTION: [74, 198, 174, 46, 15, 134, 92, 194, 0, 196, 154]

PROBLEM: [-87, -80]

SOLUTION:
[261, 240]