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: [[19, -2, 40, 12], [6, -17, 37], [17, -10, 36], [48, 47], [35, -4]]

[-18240, -3774, -6120, 2256, -140]