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: [[8, -10], [-10, -16, -20, 38, 50], [39, -39], [50, -32, -33, -23]]

[-80, -6080000, -1521, -1214400]