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: [[19, -39], [-2, 27], [-21, 32, 21, -31, 2], [23, -40], [13, -38], [23, -16], [-23, -28, 9], [13, 38, 16], [-1, 17, 48, -1], [21, -15, -4]]

[-741, -54, 874944, -920, -494, -368, 5796, 7904, 816, 1260]