Teacher: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.
Teacher: Now, understand the problem? Solve this instance: [-81, -82, 82, -56, 63, 83, 18]
Student:
[243, 246, 164, 168, 126, 166, 36]