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: [[40, -4], [-37, -31, 22], [-42, 49, 26], [-30, 35, -39, -48, 38], [-13, -8, 23, 16]]

[-160, 25234, -53508, -74692800, 38272]