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: [[12, 33, 49, -43, 49], [-11, -35, 45, -29], [-41, -48, -4, 35, 25], [-13, -1, -18]]

[-40884228, -502425, -6888000, -234]