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: [[11, 38], [-40, -34, -24, -40], [-31, -47, -23]]

[418, 1305600, -33511]