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: [[-21, -19, 34], [-31, -28], [46, 33, -34, -47]]

[13566, 868, 2425764]