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: [[-50, -35, -11, 32], [18, 29, 31, -33], [-33, 17], [10, -6, -25, -39, -7]]

[-616000, -534006, -561, 409500]