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: [[28, 19, -47, 39, -14], [-3, 44], [5, 42, -18, 17, 48], [2, -33, -18, 45, -7]]

[13652184, -132, -3084480, -374220]