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: [[-16, -1, 18], [-2, 42, -40, -16], [-18, 37, 36], [3, 11, -40, 24]]

[288, -53760, -23976, -31680]