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: [[-12, 31], [23, 27, 20, -10], [19, 44, -14, 1, -2]]

[-372, -124200, 23408]