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: [[-42, 33, -5, -49, -25], [-30, -18, 46], [-23, -29, 0, 21]]

[8489250, 24840, 0]