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: [[46, -2], [1, 8, -18], [19, -24, 31], [-27, 12]]

[-92, -144, -14136, -324]