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: [[17, 4, -17, 37, -20], [3, -30], [-23, 40]]

[855440, -90, -920]