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: [[32, -26], [-24, 35], [30, -22, -5, 40], [50, 38, 18, -18]]

[-832, -840, 132000, -615600]