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: [[-32, -43, 29, -4], [-28, -7, -31, -45], [-42, -40, -15], [23, 30]]

[-159616, 273420, -25200, 690]