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: [[9, 38, -2, 46, -1], [39, -26, -50, 22, 16], [39, -4]]

[31464, 17846400, -156]