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: [[31, -33, 16, 0], [36, -49, 46], [47, 29, -40], [5, 23, -46, 43], [-41, 7, 19, 49], [10, -49], [-31, 11, -24], [40, -5, -22, 40]]

[0, -81144, -54520, -227470, -267197, -490, 8184, 176000]