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: [-17, -75, -12, 42, -88, 83, 67, -51, -91, -99]
Student:
[51, 225, 36, 84, 264, 166, 134, 153, 273, 297]