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: [[-44, 34, 3, 7], [40, 50], [-20, -16, -44, -4]]

[-31416, 2000, 56320]