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, -41, -6, 40], [-3, 9, 31, 2, -15], [18, 21, 39, 20, -8], [-46, 27], [22, 3, 4]]

[393600, 25110, -2358720, -1242, 264]