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: [[12, -47, 37, -16, 35], [31, -41, 4, 9, 2]]

[11686080, -91512]