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: [[41, 12], [14, -44, 36, -14], [42, -33, 0], [-47, -40, -19], [15, -20, 28, -1]]

[492, 310464, 0, -35720, 8400]