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: [[5, -32, -40, 8], [-47, 17, -47], [49, -10, -41, 38, -46]]

[51200, 37553, -35117320]