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: [[-29, -45, -20], [-49, -43, -4, 38, -6], [-47, -18, -36, -38, -38]]

[-26100, 1921584, -43978464]