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: [[-19, 31, -17, 11, 41], [-34, 21, -13, 15, -12], [-47, 2], [10, -8]]

[4515863, -1670760, -94, -80]