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: [[-8, 12], [34, -39, -33, -19, 20], [37, -42, 28]]

[-96, -16628040, -43512]