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: [[-19, 17, -10, 41], [-31, 34, -49, -20], [-34, 38, -37, -6, 23], [-34, -18]]

[132430, -1032920, -6596952, 612]