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: [[33, 31, -47, 6], [-41, 28, 43], [46, 39, -46, 18, 20]]

[-288486, -49364, -29708640]