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, -12, -26], [29, 6, 34, -23], [-31, -24, -10], [29, -18, 38]]

[-9048, -136068, -7440, -19836]