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.
[[4, -8, 26, -19, 18], [-22, 20, 36], [23, -29], [31, -46, -3, -47, -41], [-36, 40], [42, -6, 31, -43]]