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: [[34, 23, -49], [-34, -30], [1, 2, -18, -6]]

[-38318, 1020, 216]