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: [[8, -39], [31, -44, -43], [19, 45, 20, -26, -13]]

[-312, 58652, 5779800]