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: [[31, -9, -50, -18], [-8, 40], [-35, -38], [22, 12, 38], [-11, 32, -6, 3], [-25, 6], [18, 5, -27], [-13, 30], [38, 16]]

[-251100, -320, 1330, 10032, 6336, -150, -2430, -390, 608]