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, 37, 30, -1], [27, 0, -32, -47], [-40, 13, -42, -16], [25, 4]]

[-44400, 0, -349440, 100]