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: [[-15, -3], [-43, 39], [-46, -13, 20, 6, 34], [-21, -4, 27, 35, -4]]

[45, -1677, 2439840, -317520]