Definition: In this task you will be given a list of lists, of numbers. For every inner list, you should multiply every number in that list and put the results in your answer. The output should be a list of numbers with the same length as the number of the lists in the input list.
Input: [[1, -17], [49, -42], [5, 27, -24, -2, 17], [40, -42]]

[-17, -2058, 110160, -1680]