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: [[-23, 16], [-14, -31, 45], [40, -38, -13, -42, -40], [-2, 5], [-21, 3, -11, 50]]

[-368, 19530, 33196800, -10, 34650]